How do I find out if a program is running in "C" (this is linux)

[n_techo]

In bash I can find out if a program is running and do stuff if it is running or not running

the code in bash

if [ `pstree | grep -o "progname" | head -n 1` = "progname" ]; then

echo "program is running"

else

echo "program is not running"

fi

How do I do the same thing in "C"

Thanks

[S_M_A]

I would do it the same way as pstree does it. See http://www.thp.uni-duisburg.de/pstree/

[n_techo]

you mean something like:

if (system("pstree | grep -o "progname" | head -n 1") == "progname"); {

/* program is running */

/* do something here if program is running */


} else {

/* program is not running */

/* do something here if program is not running */

}

for some reason I could not get the above code to work.

[S_M_A]

No I mean that you can use the pstree code.

The code you have should work as well. See this regarding system return codes though http://pubs.opengroup.org/onlinepubs...ns/system.html