RMGir, you have a good point. 
while (<INPUT>) {
    print if length($_) > 251;
}

[download]

lolly, note that the number has changed to 251 (250 for the number of bases, plus one for the newline).

Andy.

Update: Or of course: 

while (<INPUT>) {
    chomp;
    print $_."\n" if length($_) > 250;
}

[download]

In reply to Re: Skip chomp? by andye
in thread Base sequence length in fasta format file by lolly

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