CODEWITHSUNDEEP
shellunixawk
Marjer
Marjer

Reputation: 1403

Removing a given extension from a file

I have a below input file(input.txt). I want to remove the given extension(ec.txt) in input.txt

Content of input.txt

abcd.html
apple
browser.do
image.gif
net.asp

and I have an extension check file (ec.txt)

Content of ec.txt

.html
.gif
.do

I want to remove the extensions from input.txt, for the extensions available in the ec.txt file

Content of output.txt

abcd
apple
browser
image
net.asp

Upvotes: 0

Views: 41

Answers (1)

Kent
Kent

Reputation: 195209

this awk one-liner will do the job:

awk -F. -v OFS="." 'NR==FNR{a[$2];next}$NF in a{NF--}7' ec.txt input.txt

Upvotes: 2

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