This is my data: 
>NM_030643.4 Homo sapiens apolipoprotein L4 (APOL4) 
GAGGTGCTGGGGAGCAGCGTGTTTGCTGTGCTTGATTGTGAGCTGCTGGGAAGTTGTGACTTTCATTTTA
CCTTTCGAATTCCTGGGTATATCTTGGGGGCTGGAGGACGTGTCTGGTTATTATATAGGTGCACAGCTGG
AGGTGAGATCCACACAGCTCAGACCAGCTGGATCTTGCTCAGTCTCTGTCAGAGGAAGATCCCTTGGAGG
AGGCCCCGCAGCGACATGGAGGGAGCTGCTTTGCTGAAAATCTTTGTCGTCTGCATCTGGAACCAAAATC
>NM_001198855.1 Homo sapiens cytochrome P450 family 2 subfamily C memb
+er 8 (CYP2C8)
ACATGTCAAAGAGACACACACTAAATTAGCAGGGAGTGTTATAAAAACTTTGGAGTGCAAGCTCACAGCT
GTCTTAATAAGAAGAGAAGGCTTCAATGGAACCTTTTGTGGTCCTGGTGCTGTGTCTCTCTTTTATGCTT
CTCTTTTCACTCTGGAGACAGAGCTGTAGGAGAAGGAAGCTCCCTCCTGGCCCCACTCCTCTTCCTATTA
>NR_029834.1 Homo sapiens microRNA 200a (MIR200A), microRNA
CCGGGCCCCTGTGAGCATCTTACCGGACAGTGCTGGATTTCCCAGCTTGACTCTAACACTGTCTGGTAAC
GATGTTCAAAGGTGACCCGC
>AC067940.1 Homo sapiens clone RP11-818E9, LOW-PASS SEQUENCE SAMPLING
AAATACAACTTTAAATCAAAACGGTAAAAATTCCACTCTTTCATACTAACTTCAAAAGTATTTGCTTTAA
AAAAAAAGNNNNNNNNNNAAACTGAATTTCTATTAAGCATCTATTTATAGAAGAGAGTAAACACCCCGTG
AATAAAAGACAGAGAATTGTAGCAGCCCGAAGTCCCTTTTCTCTCCTCCCAAGCATTTGGCTCTGGTCCA
AATTCACATATCCTGCTCCGTAAAACAAAGTGCCTTGGTTAACCTAACGTTATTCCTTGAACAGTAGTTT
AGTGATCAACTAGTTTTTGTTGTTGTTGTTGTTTGAGACAGAGTCTCACTCTGTCGCCCAGGCTGGAGTG
CAGTGGCGAGATCTCAGCTCACTGCAACCTCTGCTGCCCAGGTTCAAGGGATTCTCCTGCCTCAGCCTCC
CAAGTAGCTGGTATTACAGGCACCTGCCACCGCGCCTGGCTAATTTTTTTTTTTTTTTTTTTTTGTATTT

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The question is, how can I find out the sequence length of each sequence and extract those of a specific length? I have tried both to put the data in an array, which puts each line in one element, and also to put it in a scalar and tried to use the > to separate each seq, but I am stuck.

In reply to Re^4: Size of sequences in fastafile by Sofie
in thread Size of sequences in fastafile by Sofie

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