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>perl -MO=Concise,-exec -e"$a = +f()" 2>&1 | find "entersub" 5 <1> entersub[t3] sKS/TARG ... >perl -MO=Concise,-exec -e"+f()" 2>&1 | find "entersub" 5 <1> entersub[t2] vKS/TARG