#!/usr/bin/perl -w use strict; my $count= 0; my $fail= 0; $|= 1; while( 1 ) { if( 0 == ++$count % 100_000 && -t STDOUT ) { print "\r$count "; } if( ! eval 'my $abc = 1; $abc++; 1' ) { print "\n$count: $@\n"; exit if 5 < ++$fail; } }