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Substr

 
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# 8  
Old 07-25-2015
Don
Thanks!
X
# 9  
Old 07-26-2015
Sequences in the FASTA format can be more than one line..

An alternative would be:
Code:
awk 'length($2)>7 {print RS $0}' RS=\> ORS= FS='\n' file

 
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