К примеру:
$ grep -r fullscr ~/.q3a
/home/arcfi/.q3a/missionpack/q3config.cfg:seta r_fullscreen "1"
/home/arcfi/.q3a/missionpack/crashlog.txt:MODE: 4, 800 x 600 fullscreen hz:N/A
/home/arcfi/.q3a/missionpack/crashlog.txt:MODE: 4, 800 x 600 fullscreen hz:N/A
/home/arcfi/.q3a/baseq3/q3config.cfg:seta r_fullscreen "1"