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Perl + Linux rearraning columns in a mutliple text places

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http://stackoverflow.com – #!/usr/bin/perl use strict; use warnings; my $file; my @files; my $parse; my @files = <*>; foreach $file(@files) chomp ($file); { $parse = system qq(paste <(cut -f1,2,13 $file) <(cut -f12 $file)); } "my" variable @files masks earlier declaration in same scope at Rast_seq.pl line 11. sh: 1: Syntax error: "(" unexpected sh: 1: Syntax error: "(" unexpected sh: 1: Syntax error: "(" unexpected sh: 1: Syntax error: "(" unexpected sh: 1: Syntax error: "(" unexpected sh: 1: Syntax error: "(" unexpected please help me in fixing this error (HowTos)