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SunilNagpal

09-08-2017, 09:27 PM
Use the following awk for changing the header of the fastq files:

awk '{print (NR%4 == 1) ? "@1_" ++i : $0}' filename.fastq

Here the bold 1 can be changed to whatever string you wish to use.
Biotechnology Forums > Biotechnology Discussion > Bioinformatics > Change Header of fastq files | awk one liner