12-08-2011
Find & Replace command - Fasta file
Hi all !
I have a fasta file that looks like that:
>Sequence1
RTYIPLCASQHKLCPITFLAVK
(it's just an example, obviously in reality I have several pairs of lines like that)
Using UNIX command(s), would it be possible to replace all the characters except the "C" of the second line only by a dash. So without modifying the first line.
To be able to obtain this:
>Sequence1
------C------C--------
Or at least which command would you use? (grep, awk, perl, sed...)
Thank you very much for your help !!!
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