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What kind of control sequences can xterm use?
VT100 Mode Most of these control sequences are standard VT102 control sequences, but there is support for later DEC VT terminals (i.e., VT220, VT320, VT420), as well as ISO 6429 and aixterm color controls. The only VT102 features not supported is auto-repeat, since the only way X provides for this will affect all windows.
How are text and graphics recorded in xterm?
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).
What does termcap ( 5 ) do In xterm ( 1 )?
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.
Why does xterm always highlight the text cursor?
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. This option indicates that xterm should always highlight the text cursor.
How can I erase a word backward at the command line ( Bash )?
After doing this, if I hit Ctrl + P it will erase a word from the line. And if I hit Ctrl + A, it will erase the whole line. Alt + Backspace works for me in bash and zsh. You can also do this with Ctrl W. Another option is to set your own shortcut but this will depend on the terminal emulator you are using.
Is the xterm program 7 bit or 8 bit?
The xterm program recognizes both 8-bit and 7-bit control characters. It generates 7-bit controls (by default) or 8-bit if S8C1T is enabled. The following pairs of 7-bit and 8-bit control characters are equivalent:
What do the VT220 parameters do In xterm?
VT220 parameters do, telling the host what features the terminal supports: P s = 0 or omitted → request the terminal’s identification code. The response depends on the decTerminalID resource setting. It should apply only to VT220 and up, but xterm extends this to VT100.
Where is the windowid variable in xterm located?
Xterm puts the variable WINDOWID in the environment of its subprocess. Its value is the window ID of the xterm window. There is no POSIX way of querying the environment of a process based on its PID; here’s a Linux way of querying the environment of process $pid and extracting the WINDOWID variable: