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Tasks like this can be solved by using BioPerl.
use strict; use warnings; use Bio::SeqIO; # Reading the fasta file my $seqio_obj = Bio::SeqIO->new(-file => "Genes.fasta", -format => "fasta" ); # Looping through sequences and printing them unless length <= 10 + while ( my $seq_obj = $seqio_obj->next_seq ) { print $seq_obj->seq,"\n" unless $seq_obj->length <= 10; } # The output should be : "GGAGGTCTTTAGCTTTAGGGAAACCC".

In reply to Re: Size of sequences in fastafile by zubenel0
in thread Size of sequences in fastafile by Sofie

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