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Both of these set count to 1 and not to 2, regardless that they run in a subshell:

count=$(pgrep -z global $PROGNAME | wc -l)
count=$(ps -z global | grep $PROGNAME | grep -v grep | wc -l)

It...

I have a ksh script (dtksh Version M-12/28/93d on Solaris 10) that is run daily by cron and sometime hangs forever. I need to detect if there is an old copy hung before I start the new run, and if so...