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NAME

xterm - terminal emulator for X

SYNOPSIS

xterm [-''toolkitoption'' ...? [-option ...?

DESCRIPTION

The xterm program is a terminal emulator for the X Window System. It provides DEC VT102/VT220 (VTxxx) and Tektronix 4014 compatible terminals for programs that cannot use the window system directly. If the underlying operating system supports terminal resizing capabilities (for example, the SIGWINCH signal in systems derived from 4.3bsd), xterm will use the facilities to notify programs running in the window whenever it is resized.

The VTxxx and Tektronix 4014 terminals each have their own window so that you can edit text in one and look at graphics in the other at the same time. To maintain the correct aspect ratio (height/width), Tektronix graphics will be restricted to the largest box with a 4014's aspect ratio that will fit in the window. This box is located in the upper left area of the window.

Although both windows may be displayed at the same time, one of them is considered the "active" window for receiving keyboard input and terminal output. This is the window that contains the text cursor. The active window can be chosen through escape sequences, the "VT Options" menu in the VTxxx window, and the "Tek Options" menu in the 4014 window.

EMULATIONS

The VT102 emulation is fairly complete, but does not support autorepeat. Double-size characters are displayed properly if your font server supports scalable fonts. Blinking characters are partially implemented; the emulation is functional but does not have the appearance of a real VT102. The VT220 emulation does not support soft fonts, it is otherwise complete. termcap(5) entries that work with xterm include "xterm," "vt102," "vt100" and "ansi," and xterm automatically searches the termcap file in this order for these entries and then sets the "TERM" and the "TERMCAP" environment variables. You may also use "vt220," but must set the terminal emulation level with the decTerminalID resource.

Many of the special xterm features may be modified under program control through a set of escape sequences different from the standard VT102 escape sequences. (See the Xterm Control Sequences document.)

The Tektronix 4014 emulation is also fairly good. It supports 12-bit graphics addressing, scaled to the window size. Four different font sizes and five different lines types are supported. There is no write-through or defocused mode support. The Tektronix text and graphics commands are recorded internally by xterm and may be written to a file by sending the COPY escape sequence (or through the Tektronix menu; see below). The name of the file will be "COPYyyyy-MM-dd.hh:mm:ss", where yyyy, MM, dd, hh, mm and ss are the year, month, day, hour, minute and second when the COPY was performed (the file is created in the directory xterm is started in, or the home directory for a login xterm).

Not all of the features described in this manual are necessarily available in this version of xterm. Some (e.g., the non-VT220 extensions) are available only if they were compiled in, though the most commonly-used are in the default configuration.

OTHER FEATURES

Xterm automatically highlights the text cursor when the pointer enters the window (selected) and unhighlights it when the pointer leaves the window (unselected). If the window is the focus window, then the text cursor is highlighted no matter where the pointer is.

In VT102 mode, there are escape sequences to activate and deactivate an alternate screen buffer, which is the same size as the display area of the window. When activated, the current screen is saved and replaced with the alternate screen. Saving of lines scrolled off the top of the window is disabled until the normal screen is restored. The termcap(5) entry for xterm allows the visual editor vi(1) to switch to the alternate screen for editing and to restore the screen on exit. A popup menu entry makes it simple to switch between the normal and alternate screens for cut and paste.

In either VT102 or Tektronix mode, there are escape sequences to change the name of the windows. Additionally, in VT102 mode, xterm implements the window-manipulation control sequences from dtterm, such as resizing the window, setting its location on the screen.

Xterm allows character-based applications to receive mouse events (currently button-press and release events, and button-motion events) as keyboard control sequences. See Xterm Control Sequences for details.

OPTIONS

The xterm terminal emulator accepts all of the standard X Toolkit command line options as well as the following (if the option begins with a `+' instead of a `-', the option is restored to its default value). The -version and -help options are interpreted even if xterm cannot open the display, and are useful for testing and configuration scripts:

-version
This causes xterm to print a version number to the standard output.
-help
This causes xterm to print out a verbose message describing its options. The message is written to the standard error.

The other options are used to control the appearance and behavior. Not all options are necessarily configured into your copy of xterm.

-132
Normally, the VT102 DECCOLM escape sequence that switches between 80 and 132 column mode is ignored. This option causes the DECCOLM escape sequence to be recognized, and the xterm window will resize appropriately.
-ah
This option indicates that xterm should always highlight the text cursor. By default, xterm will display a hollow text cursor whenever the focus is lost or the pointer leaves the window.
+ah
This option indicates that xterm should do text cursor highlighting based on focus.
-ai
This option disables active icon support if that feature was compiled into xterm. This is equivalent to setting the vt100 resource activeIcon to FALSE.
+ai
This option enables active icon support if that feature was compiled into xterm. This is equivalent to setting the vt100 resource activeIcon to TRUE.
-aw
This option indicates that auto-wraparound should be allowed. This allows the cursor to automatically wrap to the beginning of the next line when when it is at the rightmost position of a line and text is output.
+aw
This option indicates that auto-wraparound should not be allowed.
-b number
This option specifies the size of the inner border (the distance between the outer edge of the characters and the window border) in pixels. The default is 2.
+bc
turn off text cursor blinking. This overrides the cursorBlink resource.
-bc
turn on text cursor blinking. This overrides the cursorBlink resource.
-bcf milliseconds
time text cursor is off when blinking
-bcn milliseconds
time text cursor is on when blinking
-bdc
Set the vt100 resource colorBDMode to FALSE, disabling the display of characters with bold attribute as color
+bdc
Set the vt100 resource colorBDMode to TRUE, enabling the display of characters with bold attribute as color rather than bold
-cb
Set the vt100 resource cut!ToBeginningOfLine? to FALSE.
+cb
Set the vt100 resource cut!ToBeginningOfLine? to TRUE.
-cc characterclassrange__
value[,...?__ : This sets classes indicated by the given ranges for using in selecting by words. See the section specifying character classes.
-cjk_width
Set the cjkWidth resource to "true". When turned on, characters with East Asian Ambiguous (A) category in UTR 11 have a column width of 2. Othrwise, they have a column width of 1. This may be useful for some legacy CJK text terminal-based programs assuming box drawings and others to have a column width of 2. The default is "false"
+cjk_width
Reset the cjkWidth resource.
-class string
This option allows you to override xterm's resource class. Normally it is "XTerm", but can be set to another class such as "UXTerm" to override selected resources.
-cm
This option disables recognition of ANSI colorchange escape sequences.
+cm
This option enables recognition of ANSI colorchange escape sequences. This is the same as the vt100 resource colorMode.
-cn
This option indicates that newlines should not be cut in line-mode selections.
+cn
This option indicates that newlines should be cut in line-mode selections.
-cr color
This option specifies the color to use for text cursor. The default is to use the same foreground color that is used for text.
-cu
This option indicates that xterm should work around a bug in the more(1) program that causes it to incorrectly display lines that are exactly the width of the window and are followed by a line beginning with a tab (the leading tabs are not displayed). This option is so named because it was originally thought to be a bug in the curses(3x)? cursor motion package.
+cu
This option indicates that xterm should not work around the more(1) bug mentioned above.
-dc
This option disables the escape sequence to change dynamic colors: the vt100 foreground and background colors, the text cursor color, the mouse cursor foreground and background colors, the Tektronix emulator foreground and background colors, and highlight color.
+dc
This option enables the escape sequence to change dynamic colors.
-e program [__ ''arguments'' __...?
This option specifies the program (and its command line arguments) to be run in the xterm window. It also sets the window title and icon name to be the basename of the program being executed if neither -T nor -n are given on the command line. This must be the last option on the command line.
-en encoding
This options determines the encoding on which xterm runs. Encodings other than UTF-8 are supported by using luit. The -lc option should be used instead of -en for systems with locale support. This corresponds to the locale resource.
-fb font
This option specifies a font to be used when displaying bold text. This font must be the same height and width as the normal font. If only one of the normal or bold fonts is specified, it will be used as the normal font and the bold font will be produced by overstriking this font. The default is to do overstriking of the normal font. See also the discussion of boldFont and boldMode resources.
-fa pattern
This option sets the pattern for fonts selected from the !FreeType library if support for that library was compiled into xterm. This corresponds to the faceName resource.
-fbb
This option indicates that xterm should compare normal and bold fonts bounding boxes to ensure they are compatible.
+fbb
This option indicates that xterm should not compare normal and bold fonts bounding boxes to ensure they are compatible.
-fbx
This option indicates that xterm should not assume that the normal and bold fonts have VT100 linedrawing characters. If any are missing, xterm will draw the characters directly.
+fbx
This option indicates that xterm should assume that the normal and bold fonts have VT100 linedrawing characters.
-fi font
This option sets the font for active icons if that feature was compiled into xterm. See also the discussion of the iconFont resource.
-fs size
This option sets the pointsize for fonts selected from the !FreeType library if support for that library was compiled into xterm. This corresponds to the faceSize resource.
-fw font
This option specifies the font to be used for displaying wide text. By default, it will attempt to use a font twice as wide as the font that will be used to draw normal text. If no doublewidth font is found, it will improvise, by stretching the normal font. This corresponds to the wideFont resource.
-fwb
font This option specifies the font to be used for displaying bold wide text. By default, it will attempt to use a font twice as wide as the font that will be used to draw bold text. If no doublewidth font is found, it will improvise, by stretching the bold font. This corresponds to the wide!BoldFont? resource.
-fx font
This option specifies the font to be used for displaying the preedit string in the "!OverTheSpot?" input method. See also the discussion of the ximFont resource.
-hc color
This option specifies the color to use for the background of selected or otherwise highlighted text. If not specified, reverse video is used.
-hf
This option indicates that HP Function Key escape codes should be generated for function keys.
+hf
This option indicates that HP Function Key escape codes should not be generated for function keys.
-hold
Turn on the hold resource, i.e., xterm will not immediately destroy its window when the shell command completes. It will wait until you use the window manager to destroy/kill the window, or if you use the menu entries that send a signal, e.g., HUP or KILL.
+hold
Turn off the hold resource, i.e., xterm will immediately destroy its window when the shell command completes.
-ie
Turn on the pty!InitialErase? resource, i.e., use the pseudo-terminal's sense of the stty erase value.
+ie
Turn off the pty!InitialErase? resource, i.e., set the stty erase value using the kb string from the termcap entry as a reference, if available.
-im
Turn on the use!InsertMode? resource.
+im
Turn off the use!InsertMode? resource.
-into windowId
Given an X window identifier (a decimal integer), xterm will reparent its top-level shell widget to that window. This is used to embed xterm within other applications.
-j
This option indicates that xterm should do jump scrolling. Normally, text is scrolled one line at a time; this option allows xterm to move multiple lines at a time so that it does not fall as far behind. Its use is strongly recommended since it makes xterm much faster when scanning through large amounts of text. The VT100 escape sequences for enabling and disabling smooth scroll as well as the "VT Options" menu can be used to turn this feature on or off.
+j
This option indicates that xterm should not do jump scrolling.
-l
Turn logging on. Normally logging is not supported, due to security concerns. Some versions of xterm may have logging enabled. The logfile is written to the directory from which xterm is invoked. The filename is generated, of the form !XtermLog?.XXXXXX or Xterm.log.hostname.yyyy.mm.dd.hh.mm.ss.XXXXXX depending on how xterm was built.
+l
Turn logging off.
-lc
Turn on support of various encodings according to users' LC_CTYPE locale setting, i.e., LC_ALL, LC_CTYPE, or LANG variables. This is achieved by turning on UTF-8 mode and by invoking luit for conversion between locale encodings and UTF-8. (luit is not invoked in UTF-8 locales.) All you need is an iso10646-1 font regardless of your locale and encoding. This corresponds to the locale resource. The actual list of encodings which are supported is determined by luit. Consult the luit : manual page for futher details.
+lc
Turn off support of automatic selection of locale encodings. Conventional 8bit mode or, in UTF-8 locales or with -u8 option, UTF-8 mode will be used.
-lcc path
File name for the encoding converter from/to locale encodings and UTF-8 which is used with -lc option or locale resource. This corresponds to the localeFilter resource.
-leftbar
Force scrollbar to the left side of VT100 screen. This is the default, unless you have set the right!ScrollBar? resource.
-lf filename
Specify the log-filename. See the -l option.
-ls
This option indicates that the shell that is started in the xterm window will be a login shell (i.e., the first character of argv[0? will be a dash, indicating to the shell that it should read the user's .login or .profile). Note that this is incompatible with -e, since the login program does not provide a way to specify the command to run in the new shell. If you specify both, xterm uses -ls.
+ls
This option indicates that the shell that is started should not be a login shell (i.e. it will be a normal "subshell").
-mb
This option indicates that xterm should ring a margin bell when the user types near the right end of a line. This option can be turned on and off from the "VT Options" menu.
+mb
This option indicates that margin bell should not be rung.
-mc milliseconds
This option specifies the maximum time between multi-click selections.
-mesg
Turn off the messages resource, i.e., disallow write access to the terminal.
+mesg
Turn on the messages resource, i.e., allow write access to the terminal.
-ms color
This option specifies the color to be used for the pointer cursor. The default is to use the foreground color.
-nb number
This option specifies the number of characters from the right end of a line at which the margin bell, if enabled, will ring. The default is 10.
-nul
This option disables the display of underlining.
+nul
This option enables the display of underlining.
-pc
This option enables the PC-style use of bold colors (see boldColors resource).
+pc
This option disables the PC-style use of bold colors.
-pob
This option indicates that the window should be raised whenever a Control-G is received.
+pob
This option indicates that the window should not be raised whenever a Control-G is received.
-rightbar
Force scrollbar to the right side of VT100 screen.
-rvc
This option disables the display of characters with reverse attribute as color.
+rvc
This option enables the display of characters with reverse attribute as color.
-rw
This option indicates that reverse-wraparound should be allowed. This allows the cursor to back up from the leftmost column of one line to the rightmost column of the previous line. This is very useful for editing long shell command lines and is encouraged. This option can be turned on and off from the "VT Options" menu.
+rw
This option indicates that reverse-wraparound should not be allowed.
-s
This option indicates that xterm may scroll asynchronously, meaning that the screen does not have to be kept completely up to date while scrolling. This allows xterm to run faster when network latencies are very high and is typically useful when running across a very large internet or many gateways.
+s
This option indicates that xterm should scroll synchronously.
-samename
Does not send title and icon name change requests when the request would have no effect: the name is not changed. This has the advantage of preventing flicker and the disadvantage of requiring an extra round trip to the server to find out the previous value. In practice this should never be a problem.
+samename
Always send title and icon name change requests.
-sb
This option indicates that some number of lines that are scrolled off the top of the window should be saved and that a scrollbar should be displayed so that those lines can be viewed. This option may be turned on and off from the "VT Options" menu.
+sb
This option indicates that a scrollbar should not be displayed.
-sf
This option indicates that Sun Function Key escape codes should be generated for function keys.
+sf
This option indicates that the standard escape codes should be generated for function keys.
-si
This option indicates that output to a window should not automatically reposition the screen to the bottom of the scrolling region. This option can be turned on and off from the "VT Options" menu.
+si
This option indicates that output to a window should cause it to scroll to the bottom.
-sk
This option indicates that pressing a key while using the scrollbar to review previous lines of text should cause the window to be repositioned automatically in the normal position at the bottom of the scroll region.
+sk
This option indicates that pressing a key while using the scrollbar should not cause the window to be repositioned.
-sl number
This option specifies the number of lines to save that have been scrolled off the top of the screen. The default is 64.
-sm
This option, corresponding to the sessionMgt resource, indicates that xterm should set up session manager callbacks.
+sm
This option indicates that xterm should not set up session manager callbacks.
-sp
This option indicates that Sun/PC keyboard should be assumed, providing mapping for keypad `+' to `,', and CTRL-F1 to F13, CTRL-F2 to F14, etc.
+sp
This option indicates that the standard escape codes should be generated for keypad and function keys.
-t
This option indicates that xterm should start in Tektronix mode, rather than in VT102 mode. Switching between the two windows is done using the "Options" menus.
+t
This option indicates that xterm should start in VT102 mode.
-ti termid
Specify the name used by xterm to select the correct response to terminal ID queries. It also specifies the emulation level, used to determine the type of response to a DA control sequence. Valid values include vt52, vt100, vt101, vt102, and vt220 (the "vt" is optional). The default is vt100. The term_id argument specifies the terminal ID to use. (This is the same as the decTerminalID resource).
-tm string
This option specifies a series of terminal setting keywords followed by the characters that should be bound to those functions, similar to the stty program. Allowable keywords include: intr, quit, erase, kill, eof, eol, swtch, start, stop, brk, susp, dsusp, rprnt, flush, weras, and lnext. Control characters may be specified as ^char (e.g., ^c or ^u) and ^? may be used to indicate delete (127).
-tn name
This option specifies the name of the terminal type to be set in the TERM environment variable. This terminal type must exist in the termcap(5) database and should have li# and co# entries.
-u8
This option sets the utf8 resource. When utf8 is set, xterm interprets incoming data as UTF-8. This sets wideChars as a side-effect, but UTF-8 mode set by this option prevents it from being turned off. If you must turn it on and off, use the wideChars resource. Note this option and the utf8 resource are overridden by the -lc and -en options and locale resource. Instead, please use "-lc" option or "locale: true" resource in UTF-8 locales when your operating system supports locale, or "-en UTF-8" option or "locale: UTF-8" resource when your operating system does not support locale.
+u8
This option resets the utf8 resource.
-ulc
This option disables the display of characters with underline attribute as color rather than with underlining.
+ulc
This option enables the display of characters with underline attribute as color rather than with underlining.
-ut
This option indicates that xterm should not write a record into the the system utmp log file.
+ut
This option indicates that xterm should write a record into the system utmp log file.
-vb
This option indicates that a visual bell is preferred over an audible one. Instead of ringing the terminal bell whenever a Control-G is received, the window will be flashed.
+vb
This option indicates that a visual bell should not be used.
-wc
This option sets the wideChars resource. When wideChars is set, xterm maintains internal structures for 16-bit characters. If you do not set this resource to "true", xterm will ignore the escape sequence which turns UTF-8 mode on and off. The default is "false".
+wc
This option resets the wideChars resource.
-wf
This option indicates that xterm should wait for the window to be mapped the first time before starting the subprocess so that the initial terminal size settings and environment variables are correct. It is the application's responsibility to catch subsequent terminal size changes.
+wf
This option indicates that xterm show not wait before starting the subprocess.
-ziconbeep percent
Same as zIconBeep resource. If percent is nonzero, xterms that produce output while iconified will cause an XBell sound at the given volume and have "***" prepended to their icon titles. Most window managers will detect this change immediately, showing you which window has the output. (A similar feature was in x10 xterm.)
-C
This option indicates that this window should receive console output. This is not supported on all systems. To obtain console output, you must be the owner of the console device, and you must have read and write permission for it. If you are running X under xdm on the console screen you may need to have the session startup and reset programs explicitly change the ownership of the console device in order to get this option to work.
-Sccn
This option allows xterm to be used as an input and output channel for an existing program and is sometimes used in specialized applications. The option value specifies the last few letters of the name of a pseudo-terminal to use in slave mode, plus the number of the inherited file descriptor. If the option contains a "/" character, that delimits the characters used for the pseudo-terminal name from the file descriptor. Otherwise, exactly two characters are used from the option for the pseudo-terminal name, the remainder is the file descriptor. Examples: -S123/45 -Sab34

The following command line arguments are provided for compatibility with older versions. They may not be supported in the next release as the X Toolkit provides standard options that accomplish the same task.

; %geom This option specifies the preferred size and position of the Tektronix window. It is shorthand for specifying the "*tekGeometry" resource. ; #geom This option specifies the preferred position of the icon window. It is shorthand for specifying the "*iconGeometry" resource.

-T string
This option specifies the title for xterm's windows. It is equivalent to -title.
-n string
This option specifies the icon name for xterm's windows. It is shorthand for specifying the "*iconName" resource. Note that this is not the same as the toolkit option -name (see below). The default icon name is the application name.
-r
This option indicates that reverse video should be simulated by swapping the foreground and background colors. It is equivalent to -rv.
-w number
This option specifies the width in pixels of the border surrounding the window. It is equivalent to -borderwidth or -bw.

The following standard X Toolkit command line arguments are commonly used with xterm:

-bd color
This option specifies the color to use for the border of the window. The default is "black."
-bg color
This option specifies the color to use for the background of the window. The default is "white."
-bw number
This option specifies the width in pixels of the border surrounding the window.
-display display
This option specifies the X server to contact; see X(7)?.
-fg color
This option specifies the color to use for displaying text. The default is "black."
-fn font
This option specifies the font to be used for displaying normal text. The default is fixed.
-geometry geometry
This option specifies the preferred size and position of the VT102 window; see X(7)?.
-iconic
This option indicates that xterm should ask the window manager to start it as an icon rather than as the normal window.
-name name
This option specifies the application name under which resources are to be obtained, rather than the default executable file name. Name should not contain "." or "*" characters.
-rv
This option indicates that reverse video should be simulated by swapping the foreground and background colors.
+rv
Disable the simulation of reverse video by swapping foreground and background colors.
-title string
This option specifies the window title string, which may be displayed by window managers if the user so chooses. The default title is the command line specified after the -e option, if any, otherwise the application name.
-xrm resourcestring
This option specifies a resource string to be used. This is especially useful for setting resources that do not have separate command line options.

RESOURCES

The program understands all of the core X Toolkit resource names and classes as well as:

backarrow!KeyIsErase? (class !BackarrowKeyIsErase?)
Tie the VTxxx backarrowKey and pty!InitialErase? resources together by setting the DECBKM state according to whether the initial value of stty erase is a backspace (8) or delete (127) character. The default is "false", which disables this feature.
hold (class Hold)
If true, xterm will not immediately destroy its window when the shell command completes. It will wait until you use the window manager to destroy/kill the window, or if you use the menu entries that send a signal, e.g., HUP or KILL. You may scroll back, select text, etc., to perform most graphical operations. Resizing the display will lose data, however, since this involves interaction with the shell which is no longer running.
hp!FunctionKeys? (class !HpFunctionKeys?)
Specifies whether or not HP Function Key escape codes should be generated for function keys instead of standard escape sequences.
iconGeometry (class !IconGeometry?)
Specifies the preferred size and position of the application when iconified. It is not necessarily obeyed by all window managers.
iconName (class !IconName?)
Specifies the icon name. The default is the application name.
messages (class Messages)
Specifies whether write access to the terminal is allowed initially. See mesg(1). The default is "true".
pty!InitialErase? (class !PtyInitialErase?)
If "true, xterm" will use the pseudo-terminal's sense of the stty erase value. If "false, xterm will set the stty erase value to match its own configuration, using the kb string from the termcap entry as a reference, if available. In either case, the result is applied to the TERMCAP variable which xterm" sets. The default is "false".
sameName (class !SameName?)
If the value of this resource is "true", xterm does not send title and icon name change requests when the request would have no effect: the name is not changed. This has the advantage of preventing flicker and the disadvantage of requiring an extra round trip to the server to find out the previous value. In practice this should never be a problem. The default is "true".
sessionMgt (class !SessionMgt?)
If the value of this resource is "true", xterm sets up session manager callbacks for !XtNdieCallback? and !XtNsaveCallback?. The default is "true".
sun!FunctionKeys? (class !SunFunctionKeys?)
Specifies whether or not Sun Function Key escape codes should be generated for function keys instead of standard escape sequences.
sunKeyboard (class !SunKeyboard?)
Specifies whether or not Sun/PC keyboard layout should be assumed rather than DEC VT220. This causes the keypad `+' to be mapped to `,'. and CTRL F1-F12 to F11-F20, depending on the setting of the ctrlFKeys resource. so xterm emulates a DEC VT220 more accurately. Otherwise (the default, with sunKeyboard set to "false), xterm" uses PC-style bindings for the function keys and keypad.
termName (class !TermName?)
Specifies the terminal type name to be set in the TERM environment variable.
title (class Title)
Specifies a string that may be used by the window manager when displaying this application.
ttyModes (class !TtyModes?)
Specifies a string containing terminal setting keywords and the characters to which they may be bound. Allowable keywords include: intr, quit, erase, kill, eof, eol, swtch, start, stop, brk, susp, dsusp, rprnt, flush, weras, lnext and status. Control characters may be specified as ^char (e.g., ^c or ^u) and ^? may be used to indicate delete (127). Use ^- to denote undef. Use \034 to represent ^\, since a literal backslash in an X resource escapes the next character. This is very useful for overriding the default terminal settings without having to do an stty every time an xterm is started. Note, however, that the stty program on a given host may use different keywords; xterm's table is builtin.
use!InsertMode? (class !UseInsertMode?)
Force use of insert mode by adding appropriate entries to the TERMCAP environment variable. This is useful if the system termcap is broken. The default is "false."
utmpInhibit (class !UtmpInhibit?)
Specifies whether or not xterm should try to record the user's terminal in the system utmp log file.
wait!ForMap? (class !WaitForMap?)
Specifies whether or not xterm should wait for the initial window map before starting the subprocess. The default is "false."
z!IconBeep? (class Z!IconBeep?)
Same as -ziconbeep command line argument. If the value of this resource is non-zero, xterms that produce output while iconified will cause an XBell sound at the given volume and have "***" prepended to their icon titles. Most window managers will detect this change immediately, showing you which window has the output. (A similar feature was in x10 xterm.)

The following resources are specified as part of the vt100 widget (class VT100):

activeIcon (class !ActiveIcon?)
Specifies whether or not active icon windows are to be used when the xterm window is iconified, if this feature is compiled into xterm. The active icon is a miniature representation of the content of the window and will update as the content changes. Not all window managers necessarily support application icon windows. Some window managers will allow you to enter keystrokes into the active icon window. The default is "false."
allow!SendEvents? (class !AllowSendEvents?)
Specifies whether or not synthetic key and button events (generated using the X protocol !SendEvent? request) should be interpreted or discarded. The default is "false" meaning they are discarded. Note that allowing such events creates a very large security hole.
allow!WindowOps? (class !AllowWindowOps?)
Specifies whether extended window control sequences (as used in dtterm) for should be allowed.
answerbackString (class !AnswerbackString?)
Specifies the string that xterm sends in response to an ENQ (control/E) character from the host. The default is a blank string, i.e., "". A hardware VT100 implements this feature as a setup option.
alwaysHighlight (class !AlwaysHighlight?)
Specifies whether or not xterm should always display a highlighted text cursor. By default, a hollow text cursor is displayed whenever the pointer moves out of the window or the window loses the input focus.
always!UseMods? (class !AlwaysUseMods?)
Override the numLock resource, telling xterm to use the Alt and Meta modifiers as to construct parameters for function key sequences even if those modifiers appear in the translations resource.
appcursorDefault (class !AppcursorDefault?)
If "true," the cursor keys are initially in application mode. The default is "false."
appkeypadDefault (class !AppkeypadDefault?)
If "true," the keypad keys are initially in application mode. The default is "false."
autoWrap (class !AutoWrap?)
Specifies whether or not auto-wraparound should be enabled. The default is "true."
awaitInput (class !AwaitInput?)
Specifies whether or not the xterm uses a 50 millisecond timeout to await input (i.e., to support the Xaw3d arrow scrollbar). The default is "false."
backarrowKey (class !BackarrowKey?)
Specifies whether the backarrow key transmits a backspace (8) or delete (127) character. This corresponds to the DECBKM control sequence. The default (backspace) is "true." Pressing the control key toggles this behavior.
background (class Background)
Specifies the color to use for the background of the window. The default is "white."
bell!SuppressTime? (class !BellSuppressTime?)
Number of milliseconds after a bell command is sent during which additional bells will be suppressed. Default is 200. If set non-zero, additional bells will also be suppressed until the server reports that processing of the first bell has been completed; this feature is most useful with the visible bell.
boldColors (class !ColorMode?)
Specifies whether to combine bold attribute with colors like the IBM PC, i.e., map colors 0 through 7 to colors 8 through 15. These normally are the brighter versions of the first 8 colors, hence bold. The default is "true."
boldFont (class !BoldFont?)
Specifies the name of the bold font to use instead of overstriking.
boldMode (class !BoldMode?)
This specifies whether or not text with the bold attribute should be overstruck to simulate bold fonts if the resolved bold font is the same as the normal font. It may be desirable to disable bold fonts when color is being used for the bold attribute. Note that xterm has one bold font which you may set explicitly. It attempts to match a bold font for the other font selections (font1 through font6). If the normal and bold fonts are distinct, this resource has no effect.
brokenSelections (class !BrokenSelections?)
If true, xterm in 8-bit mode will interpret STRING selections as carrying text in the current locale's encoding. Normally STRING selections carry ISO-8859-1 encoded text. Setting this resource to "true" violates the ICCCM; it may, however, be useful for interacting with some broken X clients. The default is "false."
c132 (class C132)
Specifies whether or not the VT102 DECCOLM escape sequence should be honored. The default is "false."
cutNewline (class !CutNewline?)
If "false", triple clicking to select a line does not include the Newline at the end of the line. If "true", the Newline is selected. The default is "true."
cut!ToBeginningOfLine? (class !CutToBeginningOfLine?)
If "false", triple clicking to select a line selects only from the current word forward. If "true", the entire line is selected. The default is "true."
cacheDoublesize (class !CacheDoublesize?)
Specifies the maximum number of double-sized fonts which are cached by xterm. The default (8) may be too large for some X terminals with limited memory. Set this to zero to disable doublesize fonts altogether.
charClass (class !CharClass?)
Specifies comma-separated lists of character class bindings of the form [''low''-?high:value. These are used in determining which sets of characters should be treated the same when doing cut and paste. See the section on specifying character classes.
cjkWidth (class !CjkWidth?)
Specifies whether xterm should follow the traditional East Asian width convention. When turned on, characters with East Asian Ambiguous (A) category in UTR 11 have a column width of 2. You may have to set this option to "true" if you have some old East Asian terminal based programs that assume that line-drawing characters have a column width of 2.
curses (class Curses)
Specifies whether or not the last column bug in more(1) should be worked around. See the -cu option for details. The default is "false."
color!AttrMode? (class !ColorMode?)
Specifies whether "colorBD", "colorBL", "colorUL", and "colorRV" should override ANSI colors. If not, these are displayed only when no ANSI colors have been set for the corresponding position. The default is "false."
colorMode (class !ColorMode?)
Specifies whether or not recognition of ANSI (ISO 6429) color change escape sequences should be enabled. The default is "true."
colorBDMode (class !ColorMode?)
Specifies whether characters with the bold attribute should be displayed in color or as bold characters. Note that setting colorMode off disables all colors, including bold.
colorBLMode (class !ColorMode?)
Specifies whether characters with the blink attribute should be displayed in color. Note that setting colorMode off disables all colors, including this.
colorRVMode (class !ColorMode?)
Specifies whether characters with the reverse attribute should be displayed in color. Note that setting colorMode off disables all colors, including this.
colorULMode (class !ColorMode?)
Specifies whether characters with the underline attribute should be displayed in color or as underlined characters. Note that setting colorMode off disables all colors, including underlining.
color0 (class Color0)
color1 (class Color1)
color2 (class Color2)
color3 (class Color3)
color4 (class Color4)
color5 (class Color5)
color6 (class Color6)
color7 (class Color7)
These specify the colors for the ISO 6429 extension. The defaults are, respectively, black, red3, green3, yellow3, blue3, magenta3, cyan3, and gray90. The default shades of color are chosen to allow the colors 8-15 to be used as brighter versions.
color8 (class Color8)
color9 (class Color9)
color10 (class Color10)
color11 (class Color11)
color12 (class Color12)
color13 (class Color13)
color14 (class Color14)
color15 (class Color15)
These specify the colors for the ISO 6429 extension if the bold attribute is also enabled. The default resource values are, respectively, gray30, red, green, yellow, blue, magenta, cyan, and white.
color16 (class Color16) through color255 (class Color255)
These specify the colors for the 256-color extension. The default resource values are for colors 16 through 231 to make a 6x6x6 color cube, and colors 232 through 255 to make a grayscale ramp.
colorBD (class ColorBD)
This specifies the color to use to display bold characters if the "colorBDMode" resource is enabled.
colorBL (class ColorBL)
This specifies the color to use to display blink characters if the "colorBLMode" resource is enabled.
colorRV (class ColorRV)
This specifies the color to use to display reverse characters if the "colorRVMode" resource is enabled.
colorUL (class ColorUL)
This specifies the color to use to display underlined characters if the "colorULMode" resource is enabled.
ctrlFKeys (class CtrlFKeys)
In VT220 keyboard mode (see sunKeyboard resource), specifies the amount by which to shift F1-F12 given a control modifier (CTRL). This allows you to generate key symbols for F10-F20 on a Sun/PC keyboard. The default is "10", which means that CTRL F1 generates the key symbol for F11.
cursorBlink (class !CursorBlink?)
Specifies whether to make the cursor blink. The default is "false."
cursorColor (class !CursorColor?)
Specifies the color to use for the text cursor. The default is "black."
cursor!OffTime? (class !CursorOffTime?)
Specifies the duration of the "off" part of the cursor blink cycle-time in milliseconds. The default is 300.
cursor!OnTime? (class !CursorOnTime?)
Specifies the duration of the "on" part of the cursor blink cycle-time, in milliseconds. The default is 600.
highlightColor (class !HighlightColor?)
Specifies the color to use for the background of selected or otherwise highlighted text. If not specified, reverse video is used.
decTerminalID (class !DecTerminalID)
Specifies the emulation level (100=VT100, 220=VT220, etc.), used to determine the type of response to a DA control sequence. The default is 100.
deleteIsDEL (class !DeleteIsDEL)
Specifies whether the Delete key on the editing keypad should send DEL (127) or the VT220-style Remove escape sequence. The default is "false," for the latter.
dynamicColors (class !DynamicColors?)
Specifies whether or not escape sequences to change colors assigned to different attributes are recognized.

; eightBitControl (class !EightBitControl?) Specifies whether or not control sequences sent by the terminal should be eight-bit characters or escape sequences. The default is "false." ; eightBitInput (class !EightBitInput?) If "true", Meta characters input from the keyboard are presented as a single character with the eighth bit turned on. The terminal is put into 8-bit mode. If "false", Meta characters are converted into a two-character sequence with the character itself preceded by ESC. The terminal is put into 7-bit mode. The metaSendsEscape resource may override this. The default is "true." ; eightBitOutput (class !EightBitOutput?) Specifies whether or not eight-bit characters sent from the host should be accepted as is or stripped when printed. The default is "true," which means that they are accepted as is.

faceName (class !FaceName?)
Specify the pattern for fonts selected from the !FreeType library if support for that library was compiled into xterm. There is no default. If not specified, or if there is no match for both normal and bold fonts, xterm uses the font and related resources.
faceSize (class !FaceSize?)
Specify the pointsize for fonts selected from the !FreeType library if support for that library was compiled into xterm. The default is "14."
font (class Font)
Specifies the name of the normal font. The default is "fixed."
font1 (class Font1)
Specifies the name of the first alternative font.
font2 (class Font2)
Specifies the name of the second alternative font.
font3 (class Font3)
Specifies the name of the third alternative font.
font4 (class Font4)
Specifies the name of the fourth alternative font.
font5 (class Font5)
Specifies the name of the fifth alternative font.
font6 (class Font6)
Specifies the name of the sixth alternative font.
fontDoublesize (class !FontDoublesize?)
Specifies whether xterm should attempt to use font scaling to draw doublesize characters. Some older font servers cannot do this properly, will return misleading font metrics. The default is "true. If disabled, xterm" will simulate doublesize characters by drawing normal characters with spaces between them.
force!BoxChars? (class Boolean)
Specifies whether xterm should assume the normal and bold fonts have VT100 line-drawing characters. If "false, xterm" will check for missing characters in the 1-31 cells and make line-drawing characters directly. The default is "false."
foreground (class Foreground)
Specifies the color to use for displaying text in the window. Setting the class name instead of the instance name is an easy way to have everything that would normally appear in the text color change color. The default is "black."
free!BoldBox? (class Boolean)
Specifies whether xterm should assume the bounding boxes for normal and bold fonts are compatible. If "false, xterm" compares them and will reject choices of bold fonts that do not match the size of the normal font. The default is "false", which means that the comparison is performed.
geometry (class Geometry)
Specifies the preferred size and position of the VT102 window.
highlightSelection (class !HighlightSelection?)
If "false", selecting with the mouse highlights all positions on the screen between the beginning of the selection and the current position. If "true, xterm" highlights only the positions that contain text that can be selected. The default is "false."
Depending on the way your applications write to the screen, there may be trailing blanks on a line. Xterm stores data as it is shown on the screen. Erasing the display changes the internal state of each cell so it is not considered a blank for the purpose of selection. Blanks written since the last erase are selectable. If you do not wish to have trailing blanks in a selection, use the trimSelection
resource.
hp!LowerleftBugCompat? (class !HpLowerleftBugCompat?)
Specifies whether to work around a bug in HP's xdb, which ignores termcap and always sends ESC F to move to the lower left corner. "true causes xterm" to interpret ESC F as a request to move to the lower left corner of the screen. The default is "false."
i18nSelections (class I18nSelections)
If false, xterm will never request the targets COMPOUND_TEXT or TEXT. The default is "true." It may be set to false in order to work around ICCCM violations by other X clients.
icon!BorderColor? (class !BorderColor?)
Specifies the border color for the active icon window if this feature is compiled into xterm. Not all window managers will make the icon border visible.
icon!BorderWidth? (class !BorderWidth?)
Specifies the border width for the active icon window if this feature is compiled into xterm. The default is 0 (no border). Not all window managers will make the border visible.
iconFont (class !IconFont?)
Specifies the font for the miniature active icon window, if this feature is compiled into xterm. The default is "nil2".
internalBorder (class !BorderWidth?)
Specifies the number of pixels between the characters and the window border. The default is 2.
jumpScroll (class !JumpScroll?)
Specifies whether or not jump scroll should be used. The default is "true."
keyboardDialect (class !KeyboardDialect?)
Specifies the initial keyboard dialect, as well as the default value when the terminal is reset. The value given is the same as the final character in the control sequences which change character sets. The default is "B", which corresponds to US ASCII.
limitResize (class !LimitResize?)
Limits resizing of the screen via control sequence to a given multiple of the display dimensions. The default is "1".
locale (class Locale)
Specifies how to use luit, an encoding converter between UTF-8 and locale encodings. If this is "true, xterm" will use the encoding specified by the users' LC_CTYPE locale (i.e., LC_ALL, LC_CTYPE, or LANG variables) as far as possible. This is realized by always enabling UTF-8 mode and invoking luit in non-UTF-8 locales. If this is "medium, xterm will follow users' LC_CTYPE locale only for UTF-8, east Asian, and Thai locales, where the encodings were not supported by conventional 8bit mode with changing fonts. For other locales, xterm" will use conventional 8bit mode. If this is "no, xterm" will use conventional 8bit mode or UTF-8 mode according to utf8 resource or -u8 option. Any other value such as "UTF-8" and "ISO8859-2" will be assumed to be an encoding name; luit will be invoked to support the encoding. The actual list of supported encodings depends on luit. The default is "medium".
localeFilter (class !LocaleFilter?)
Specifies the file name for the encoding converter from/to locale encodings and UTF-8 which is used with the -lc option or locale resource. The help message shown by "xterm -help" lists the default value, which depends on your system configuration.
loginShell (class !LoginShell?)
Specifies whether or not the shell to be run in the window should be started as a login shell. The default is "false."
marginBell (class !MarginBell?)
Specifies whether or not the bell should be run when the user types near the right margin. The default is "false."
meta!SendsEscape? (class !MetaSendsEscape?) If "true, Meta characters are converted into a two-character sequence with the character itself preceded by ESC. This applies as well to function key control sequences, unless xterm" sees that Meta
is used in your key translations. If "false", Meta characters input from the keyboard are handled according to the eight!BitInput? resource. The default is "false."

; modify!CursorKeys? (class !ModifyCursorKeys?) Tells how to handle the special case where control-, shift-, alt- or meta-modifiers are used to add a parameter to the escape sequence returned by a cursor-key. Set it to 0 to use the old/obsolete behavior. Set it to 1 to prefix modified sequences with CSI. Set it to 2 to force the modifier to be the second parameter. Set it to 3 to mark the sequence with a '>' to hint that it is private. The default is "2".

multi!ClickTime? (class !MultiClickTime?)
Specifies the maximum time in milliseconds between multi-click select events. The default is 250 milliseconds.
multiScroll (class !MultiScroll?)
Specifies whether or not scrolling should be done asynchronously. The default is "false."
n!MarginBell? (class Column)
Specifies the number of characters from the right margin at which the margin bell should be rung, when enabled.
numLock (class !NumLock?)
If "true, xterm checks if !NumLock? is used as a modifier (see xmodmap(1)"). If so, this modifier is used to simplify the logic when implementing special !NumLock? for the sunKeyboard resource. Also (when sunKeyboard is false), similar logic is used to find the modifier associated with the left and right Alt keys. The default is "true."
oldXtermFKeys (class !OldXtermFKeys)
If "true, xterm will use old-style control sequences for function keys F1 to F4, for compatibility with X Consortium xterm". Otherwise, it uses the VT100-style codes for PF1 to PF4. The default is "false."
pointerColor (class !PointerColor?)
Specifies the foreground color of the pointer. The default is "!XtDefaultForeground?."
pointer!ColorBackground? (class !PointerColorBackground?)
Specifies the background color of the pointer. The default is "!XtDefaultBackground?."
pointerShape (class Cursor)
Specifies the name of the shape of the pointer. The default is "xterm."
pop!OnBell? (class !PopOnBell?)
Specifies whether the window whould be raised when Control-G is received. The default is "false."
printAttributes (class !PrintAttributes?)
Specifies whether to print graphic attributes along with the text. A real DEC VTxxx terminal will print the underline, highlighting codes but your printer may not handle these. A "0" disables the attributes. A "1" prints the normal set of attributes (bold, underline, inverse and blink) as VT100-style control sequences. A "2" prints ANSI color attributes as well. The default is "1."
printer!AutoClose? (class !PrinterAutoClose?)
If "true, xterm" will close the printer (a pipe) when the application switches the printer offline with a Media Copy command. The default is "false."
printerCommand (class !PrinterCommand?)
Specifies a shell command to which xterm will open a pipe when the first MC (Media Copy) command is initiated. The default is "lpr." If the resource value is given as a blank string, the printer is disabled.
printer!ControlMode? (class !PrinterControlMode?)
Specifies the printer control mode. A "1 selects autoprint mode, which causes xterm" to print a line from the screen when you move the cursor off that line with a line feed, form feed or vertical tab character, or an autowrap occurs. Autoprint mode is overridden by printer controller mode (a "2"), which causes all of the output to be directed to the printer. The default is "0."
printerExtent (class !PrinterExtent?)
Controls whether a print page function will print the entire page (true), or only the the portion within the scrolling margins (false). The default is "false."
printer!FormFeed? (class !PrinterFormFeed?)
Controls whether a form feed is sent to the printer at the end of a print page function. The default is "false."
resizeGravity (class !ResizeGravity?)
Affects the behavior when the window is resized to be taller or shorter. !NorthWest? specifies that the top line of text on the screen stay fixed. If the window is made shorter, lines are dropped from the bottom; if the window is made taller, blank lines are added at the bottom. This is compatible with the behavior in R4. !SouthWest? (the default) specifies that the bottom line of text on the screen stay fixed. If the window is made taller, additional saved lines will be scrolled down onto the screen; if the window is made shorter, lines will be scrolled off the top of the screen, and the top saved lines will be dropped.
reverseVideo (class !ReverseVideo?)
Specifies whether or not reverse video should be simulated. The default is "false."
reverseWrap (class !ReverseWrap?)
Specifies whether or not reverse-wraparound should be enabled. The default is "false."
right!ScrollBar? (class !RightScrollBar?)
Specifies whether or not the scrollbar should be displayed on the right rather than the left. The default is "false."
saveLines (class !SaveLines?)
Specifies the number of lines to save beyond the top of the screen when a scrollbar is turned on. The default is 64.
scrollBar (class !ScrollBar?)
Specifies whether or not the scrollbar should be displayed. The default is "false."
scrollKey (class !ScrollCond?)
Specifies whether or not pressing a key should automatically cause the scrollbar to go to the bottom of the scrolling region. The default is "false."
scrollLines (class !ScrollLines?)
Specifies the number of lines that the scroll-back and scroll-forw actions should use as a default. The default value is 1.
scroll!TtyOutput? (class !ScrollCond?)
Specifies whether or not output to the terminal should automatically cause the scrollbar to go to the bottom of the scrolling region. The default is "true."
shiftFonts (class !ShiftFonts?)
Specifies whether to enable the actions larger-vtfont() and smaller-vt-font(), which are normally bound to the shifted KP_Add and KP_Subtract. The default is "true."
signalInhibit (class !SignalInhibit?)
Specifies whether or not the entries in the "Main Options menu for sending signals to xterm" should be disallowed. The default is "false."
tekGeometry (class Geometry)
Specifies the preferred size and position of the Tektronix window.
tekInhibit (class !TekInhibit?)
Specifies whether or not the escape sequence to enter Tektronix mode should be ignored. The default is "false."
tekSmall (class !TekSmall