<Jafet> (echo \'#!/bin/sh\'; echo \'a() { p=$(echo -n $(ps -p $0 -oppid | tail -1)); if egrep " \\| cat\\$" /proc/$p/cmdline; then ps -p $0 -ocmd | tail -1; else a $p; fi }\'; echo \'a $$\') > bin/quine2

'ASCII digit to integer conversion (positive values only)
'Programmed by Jeffry Johnston, 2005
1[1?,1~10:2,0+*0,2=*0,0+*0,0+*0,0+*2,0+*1,0-48]1
2[0#]0