$ for x in `ptree | <a class="zem_slink freebase/en/awk" title="AWK" rel="homepage" href="http://cm.bell-labs.com/cm/cs/awkbook/index.html">awk '{print $1}&#8217;`; do pfiles $x | <a class="zem_slink freebase/en/grep" title="Grep" rel="wikipedia" href="http://en.wikipedia.org/wiki/Grep">grep ${PORT} > /dev/null 2>&1; if [ x&#8221;$?&#8221; == &#8221;x0&#8221; ]; then ps -ef | grep $x | grep -v grep; fi; done 2> /dev/null

Can use lsof, but since it&#8217;s not part of the base OS, it&#8217;s not always available.

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