view bin/quine2 @ 2321:da361e77bd10

<Jafet> (echo \'#!/bin/sh\'; echo \'a() { p=$(echo -n $(ps -p $1 -oppid | tail -1)); if ps -p $p -ocmd | tail -1 | egrep -q " \\| cat\\$"; then ps -p $1 -ocmd | tail -1; else a $p; fi }\'; echo \'q=$(a $$); if echo "$q" | grep -q "^bash -c"; then echo "$q" | sed "s/^bash -c/`run/"; elif echo "$q" | grep -q "^/bin/sh"; then echo "$q" | sed "s,^/bin/sh,`,"; else echo \\`"$q"; fi\') > bin/quine2
author HackBot
date Fri, 01 Mar 2013 02:13:13 +0000
parents da776ff681e5
children db759ee5bcf5
line wrap: on
line source

#!/bin/sh
a() { p=$(echo -n $(ps -p $1 -oppid | tail -1)); if ps -p $p -ocmd | tail -1 | egrep -q " \| cat\$"; then ps -p $1 -ocmd | tail -1; else a $p; fi }
q=$(a $$); if echo "$q" | grep -q "^bash -c"; then echo "$q" | sed "s/^bash -c/`run/"; elif echo "$q" | grep -q "^/bin/sh"; then echo "$q" | sed "s,^/bin/sh,`,"; else echo \`"$q"; fi