jian@kuhub.cc.ukans.edu (09/12/90)
For some reason, I want to disable any interrupt key stroke like Ctrl C, ESC,
and Ctrl Z. How could I do that by using SHELL or CSHELL command. Any help
appreciated.
Jian Q. Li
jian@kuhub.cc.ukans.edu
gt0178a@prism.gatech.EDU (BURNS) (09/14/90)
in article <25538.26ee215b@kuhub.cc.ukans.edu>, jian@kuhub.cc.ukans.edu says: > For some reason, I want to disable any interrupt key stroke like Ctrl C, ESC, > and Ctrl Z. How could I do that by using SHELL or CSHELL command. Any help > appreciated. It usually involves giving the stty command for disabling a ctrl-sequence. It's usually 'stty susp "undel"' (BSD) or 'stty swtch "^-" (SysV) to disable ^Z, and similarly for the intr (^C) and quit (abort program w/ core dump) interrupt definitions. SysV also allows 'stty -isig' to turn off interpretation of the control char. (usually ^C) assigned to 'intr', which has the advantage that you just have to do an 'stty isig' to re-enable it, instead of remembering what key you assigned to 'intr' and re-installing the definition. Check your stty man page for exact syntax. -- BURNS,JIM Georgia Institute of Technology, Box 30178, Atlanta Georgia, 30332 uucp: ...!{decvax,hplabs,ncar,purdue,rutgers}!gatech!prism!gt0178a Internet: gt0178a@prism.gatech.edu
guy@auspex.auspex.com (Guy Harris) (09/15/90)
>> For some reason, I want to disable any interrupt key stroke like Ctrl C, ESC, >> and Ctrl Z. How could I do that by using SHELL or CSHELL command. Any help >> appreciated. Dunno what ESC is as an interrupt keystroke; unlike ^C (which is often, although not always, the "intr" character) and ^Z (which is usually the "susp" character), ESC isn't normally an interrupt keystroke. It may be used as a "secondary end-of-line" character by some shells, such as those that support filename completion, but that's not an interrupt keystroke. >SysV also allows 'stty -isig' to turn off interpretation of the control >char. (usually ^C) assigned to 'intr', *And* the ones assigned to "quit", "swtch" - *and* "susp", if your system has an S5-flavored tty driver and job control.