Argument "╛¡¡╛ª╫╧ç╬₧M-^]╩╔Ö╟╓" isn't numeric in numeric ne (!=) at checkme.pl li ne 29, line 2. #### #!/usr/bin/perl -w use strict; my $ex_line = q(perl -ne "if (/(\d{6})_/g){ chomp;print qq($1,),(split/;/,$_)[-1],qq(\n)};" input.dat); my $stuff = `$ex_line`; my %hash; for (split /\n/, $stuff) { my @arr = split/,/,$_; push @{$hash{$arr[0]}} , $arr[1]; } foreach (keys %hash) { print "$_\t" . join / /, @{$hash{$_}} , qq(\n); } 1; #### >probe:ATH1-121501:244901_at:594:703;Interrogation_Position=56;Antisense;TTGCTGCTATTCTATCTATTTGTGC Times 11 >probe:ATH1121501:244902_at:522:511;Interrogation_Position=153;Antisense;GGTATTTTCCGTTTCTTCGGATGAT Times 11 >probe:ATH1121501:244902_at:522:511;Interrogation_Position=153;Antisense;GGTATTTTCCGTTTCTTCGGATGAT Times 11 >probe:ATH1121501:244902_at:522:511;Interrogation_Position=153;Antisense;GGTATTTrCCGTTTCTTCGGATGAT Times 11 >probe:ATH1121501:244902_at:522:511;Interrogation_Position=153;Antisense;GGTATTfTCCGTTTCTTCGGATGAT Times 11 >probe:ATH1121501:244902_at:522:511;Interrogation_Position=153;Antisense;GGTATTTnCCGTTTCTTCGGATGAT Times 11 >probe:ATH1121501:244902_at:522:511;Interrogation_Position=153;Antisense;GGTATTTTCCGuTTCTTCGGATGAT Times 11 >probe:ATH1121501:244902_at:522:511;Interrogation_Position=153;Antisense;GGTATTTTiCGTTTCTTCGGATGAT Times 11 #### 244901 TTGCTGCTATTCTATCTATTTGTGC 244902 GGTATTTTCCGTTTCTTCGGATGATGGTATTTTCCGTTTCTTCGGATGATGGTATTTrCCGTTTCTTCGGAT GATGGTATTfTCCGTTTCTTCGGATGATGGTATTTnCCGTTTCTTCGGATGATGGTATTTTCCGuTTCTTCGGATGATGG TATTTTiCGTTTCTTCGGATGAT