5.2.2 Terminating Processes (kill)
The kill command provides you with a direct way to
stop command processes that you no longer want. This is particularly useful
when you make a mistake typing a command that takes a long time to run.
To terminate a process:
Type ps to find out the PID(s) for the process(es).
Type kill followed by the PID(s).
The following example illustrates this procedure:
PID TTY TIME COMMAND
1291 co 0:12 -bin/csh (csh)
3250 p0 0:00 ps
1286 p1 0:05 -bin/csh (csh)
3248 p1 0:05 vi commands
$ kill 1291
[1} Terminated -bin/csh/ (csh)
Note that a faster way of determining the right PID is to pipe ps output through grep as follows:
where commandname is the name of the command process
you want to stop.
If you need to forcibly terminate a process, you can use the -9 option to the ps command as follows:
where PID# is the process identification number
of the process you want to stop.