Sorry for the late reply, I'm very busy with exams coming up (mid-terms). Okay, so yes I do plan on using GNU Debugger, and just to help you out too, the command "c" under GNU Debugger will continue Portal. Anyways, here's what I am trying to execute: Code: ps -ef | grep hl2.exe To find hl2.exe's profile #. Code: gdb --pid ##### The #'s refer to the hl2.exe pid. and then with gdb: Code: (gdb) handle SIGSTOP nostop noprint (gdb) handle SIGSEGV nostop noprint (gdb) handle SIGUSR1 nostop (gdb) c What I want to do is use the gdb --pid code and the gdb commands as soon as hl2.exe is detected from Team Fortress 2 in my bash script.