Github user kiszk commented on a diff in the pull request: https://github.com/apache/spark/pull/19998#discussion_r157332103 --- Diff: dev/run-tests.py --- @@ -253,9 +253,14 @@ def kill_zinc_on_port(zinc_port): """ Kill the Zinc process running on the given port, if one exists. """ - cmd = ("/usr/sbin/lsof -P |grep %s | grep LISTEN " - "| awk '{ print $2; }' | xargs kill") % zinc_port - subprocess.check_call(cmd, shell=True) + try: + cmd = ("lsof -P |grep %s | grep LISTEN " + "| awk '{ print $2; }' | xargs kill") % zinc_port + subprocess.check_call(cmd, shell=True) + except: --- End diff -- Yes, if the command does not exist, an exception occurs. Thus, we can execute one of the two cases. Yea, to use `cmd` is fine.
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