Thanks for the response. I tried the code but got an error: 
 Use of uninitialized value $_ in scalar chomp at test.pl line 37.
Use of uninitialized value $_ in pattern match (m//) at test.pl line 3
+8.
Use of uninitialized value $_ in numeric gt (>) at test.pl line 39.
Use of uninitialized value $_ in numeric lt (<) at test.pl line 39.

[download]
Lines 37 - 39 are: 
        chomp;
        next if /^>/;     # discard headers
        next if length($_) > 30 or length($_) < 15; # discard unwanted
+ sizes

[download]
Kindly assist. Thanks

In reply to Re^2: How to format fasta file by andyBio
in thread How to format fasta file by andyBio

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