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#!/usr/bin/perl open (FI,"cut") or die "Kann Cut-Datei nicht oeffnen\n"; outer: while (<FI>) { chomp; if (! ($_ > 1 || $_ eq "0")) { open (FO,">cut2"); print FO "$_\n"; while (<FI>) { chomp; if ($_ > 1 || $_ eq "0") { print FO "$_\n"; } else { system ("cutt"); redo outer; } } } } if ( -f "cut2") { system ("cutt"); unlink "cut2"; }