On Tue, 2008-04-15 at 10:49 -0700, Don Russell wrote: > How can I tell, from a Korn shell script, if the script is running in > a vi sub-shell? > > I have a script that has a problem when run from a vi subshell, and > I'd like to check for that condition and just issue an error message. > (I know that's not the solution to the problem, but the thing that > fails is being replaced, so this is a temporary "fix") Try: ls -l /proc/`cat /proc/$$/status|grep PPid|cut -f2`/exe and work from there. poc