CODEWITHSUNDEEP
sed
noob_coder
noob_coder

Reputation: 829

my sed command is not working inside shell script

I have a sed command something like this to comment out a particular line based on a particular pattern:

sed -e '/$OLD_VERSION/ s/^#*/#/' -i /ws/usernam/workspace/scripts/raw-vobs-config-spec

Here we need to comment out the line containing $OLD_VERSION. I have passed $OLD_VERSION as a parameter in my shell script.

Upvotes: 0

Views: 1056

Answers (1)

paddy
paddy

Reputation: 63481

When you use single quotes in a shell, it prevents ordinary variable expansion, and so $OLD_VERSION will not expand. Since you don't have any other characters requiring escaping, the fix should be as simple as using double-quotes:

sed -e "/$OLD_VERSION/ s/^#*/#/" -i /ws/usernam/workspace/scripts/raw-vobs-config-spec

Upvotes: 1

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