sed substitute command -- need help


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# 1  
sed substitute command -- need help

I am trying to do what I thought should be a simple substitution, but I can't get it to work.

File:
Quote:
>m.149837_g.149837__ORF_g.149837_m.149837_type:internal_len:169_(-)_comp100001_c0_seq1:3-509(-)
FHPPVSDSCKRCDMYKNQIKIAPENEKIQLNADHELHLRKAESARNGMNNDVELCKTDPN
KVTVIAFDLMKTLSTPSLSVGVAYYKRQLSTYNLGIHNLTTNDAYMYVWNESMASRGPQE
IGSCLLHFIKNYVHTEQLIMYSDQCGGQNRNIKMALICNFVVGSNDYLP
>m.180533_g.180533__ORF_g.180533_m.180533_type:internal_len:99_(-)_comp1000362_c0_seq1:3-299(-)
QSLPFPPNYISLSHAGTLSVNPCTAYRLLKDFVSLSTGDFIIQNGANSGVGRVVIQLCKA
WGFKSINIVRDRENLRELVEELSQLGADYTFTPAELRKS
Desire output:
Quote:
comp100001_c0_seq1
comp1000362_c0_seq1
I thought I'd start with a sed command to remove the part of the header line preceding the string "comp", then go on to remove the suffix of the target string (e.g. ":3-509(-)"), followed by an awk command to retain only lines beginning with "comp". But my sed command doesn't do anything and I'm not sure why, so I'm stuck.
Code:
sed -e 's/\>.+_comp/_comp/'

# 2  
Code:
awk '/>/{gsub(/.*\)_|:.*/,x); print}' file

This User Gave Thanks to Yoda For This Post:
# 3  
Try:
Code:
sed -n '/^>/s/.*)_//;s/:.*//p'

This User Gave Thanks to Don Cragun For This Post:
# 4  
Both of these work, thanks!
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