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process.plitself has not been reparented byinitas well). Note thatpkill process.plwould match any process whose name containsprocessfollowed by any character followed bypl. You'd needpkill -x 'process\.pl'orpkill '^process\.pl$'for processes whose name isprocess.pl.pkillon it should havepgrep, too, which has much the same command interface. So, ifpgrep -P 1 -x 'process\.pl'lists all of the PIDs you want killed and nothing else, you can be reasonably sure thatpkillisn't going to do something unexpected. The main danger then is that your test isn't run at the same time as the actual command, since the process table will be different at execution time.