Generally you use ps command to find out all running process. You may also pipe out ps command output via grep command to pickup desired output.
Basically you don't want display grep command as the process.
Let us run combination of ps and grep command to find out all perl processes:
$ ps aux | grep perl
vivek 4611 0.0 0.7 10044 6068 ? Ss 02:40 0:00 /usr/bin/perl apps/monitor/gwl.pl root 4853 0.0 0.7 10044 6068 ? Ss 02:40 0:00 /usr/bin/perl /usr/share/webmin/miniserv.pl /etc/webmin/miniserv.conf vivek 5166 0.0 0.0 2884 748 pts/0 R+ 03:06 0:00 grep perl
In above example you are getting the grep process itself. To ignore grep process from output, type any one of the following:
$ ps aux | grep perl | grep -v grep
$ ps aux | grep '[p]erl'