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Full Discussion: Stop exe from command line
Top Forums Programming Stop exe from command line Post 38539 by Perderabo on Friday 18th of July 2003 11:13:48 AM
Old 07-18-2003
To kill a process, not a program, you need to know the process id or pid. Manually, you might do "ps -ef | more" and look at the output until you find the process in question. Then you do "kill 123" or whatever. A process can detect this and shut itself down. If that doesn't kill it, then "kill -9 123" is in order.

Since you wrote the program, one useful trick is to have the program write its pid to a file, which by tradition would be called myprog.pid or something. Then you do "kill `cat myprog.pid`".

All of this is possible in C via kill() and getpid().

There are man pages on all of this stuff. So become familiar with commands like:
man -k kill
man -s1 kill
man -s2 kill

But also, if you don't know how to kill a process, I must say that it's premature to writing in C on Unix. I would advise you to read a book on unix programming.

Finally, our rules state:
Quote:
(5) Search the forums database with your keywords before asking.
By simply putting "kill" in as keyword, you would find lots of threads about killing processes.
 

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LEARN ABOUT OSX

kill

KILL(1) 						    BSD General Commands Manual 						   KILL(1)

NAME

     kill -- terminate or signal a process

SYNOPSIS

     kill [-s signal_name] pid ...
     kill -l [exit_status]
     kill -signal_name pid ...
     kill -signal_number pid ...

DESCRIPTION

     The kill utility sends a signal to the processes specified by the pid operand(s).

     Only the super-user may send signals to other users' processes.

     The options are as follows:

     -s signal_name
	     A symbolic signal name specifying the signal to be sent instead of the default TERM.

     -l [exit_status]
	     If no operand is given, list the signal names; otherwise, write the signal name corresponding to exit_status.

     -signal_name
	     A symbolic signal name specifying the signal to be sent instead of the default TERM.

     -signal_number
	     A non-negative decimal integer, specifying the signal to be sent instead of the default TERM.

     The following pids have special meanings:
     -1      If superuser, broadcast the signal to all processes; otherwise broadcast to all processes belonging to the user.

     Some of the more commonly used signals:
     1	     HUP (hang up)
     2	     INT (interrupt)
     3	     QUIT (quit)
     6	     ABRT (abort)
     9	     KILL (non-catchable, non-ignorable kill)
     14      ALRM (alarm clock)
     15      TERM (software termination signal)

     Some shells may provide a builtin kill command which is similar or identical to this utility.  Consult the builtin(1) manual page.

SEE ALSO

     builtin(1), csh(1), killall(1), ps(1), kill(2), sigaction(2)

STANDARDS

     The kill function is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.

HISTORY

     A kill command appeared in Version 6 AT&T UNIX.

BUGS

     A replacement for the command ``kill 0'' for csh(1) users should be provided.

BSD
								  April 28, 1995							       BSD
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