How to change the prefix name of query ID in the blastx results file (tabular format)?

Question

[seta]

Hi everybody,

I have a blastx result in a text file (tabular format), the query ID name (column 1) is like below:

CA100
CB180
CC200
CE400
Contig230

I want to change their prefix into "seq" to have the names as

seq100
seq180
seq200
seq400
seq230

Could you please help me out to do this?

Thanks in advance

Answer 1

[5heikki]

This might work:

sed 's/^[A-Z]*[a-z]*/seq/' inFile > outFile

Might not be a very sensible thing to do if some query IDs become identical because of this, but whatever..

[seta]

Thanks friend.