I want to kill process

[Jeon, Chang-Min]

my program exectute mencoder program(from MPlayer) by using system function in program.

I want to kill process of mencoder in my program.

ex) int main()
{
// running program
}

void run_mencoder()
{
// system("mencoder");
}

void kill_mencoder()
{
// system("kill -9 ????"); //????->mencoder process ID
}

how to know process ID of mencoder?

[bigtomrodney]

You should be able to get the PID by running

/sbin/pidof mencoder

The only negative aspect will be if it returns more than one value, you may have to recode for that. It is nice because it returns a very small amount of data, just the PID I think.

[Jeon, Chang-Min]

Thank you very much for your reply

I want to use "pidof" program in my app by calling system function.

system function can't return value of "pidof"

How to get return value of "pidof" in my application ?

[a thing]

kill `pidof menencoder`

In Bash, for anything inside ``, standard out is the script, not the screen.

Or you can use this little script I made for myself:

pid=`pidof $1`
if [ "$?" != "0" ]; then
   exit
fi
kill $pid

[scm]

If you're writing a C program, don't use system, use fork() and exec(). That way, you can save the PID of your child process and kill it with a kill(2) system call.