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tjwoosta

Member

Registered: 2008-12-18

Posts: 453

[solved] How to avoid expanding variables with sed?

Stupid question probably..

Say I have a script that uses the variable $HOME, and I want to replace it with /another/dir using sed

I try something like..

sed -i "s_$HOME/file_/another/dir/file_g" script.sh

but its a no go, I think sed expands $HOME to /home/tj and fails to find it in the script. How to avoid this?

Last edited by tjwoosta (2011-03-02 05:57:06)

escondida

Package Maintainer (PM)

Registered: 2008-04-03

Posts: 157

Re: [solved] How to avoid expanding variables with sed?

You want to wrap the s/ expression in single quotes, then. That's not sed, though, but bash. This should prove enlightening (-:

tjwoosta

Member

Registered: 2008-12-18

Posts: 453

Re: [solved] How to avoid expanding variables with sed?

Thanks

escondida

Package Maintainer (PM)

Registered: 2008-04-03

Posts: 157

Re: [solved] How to avoid expanding variables with sed?

Glad to help!

Cerebral

Forum Fellow

From: Waterloo, ON, CA

Registered: 2005-04-08

Posts: 3,108

Website

Re: [solved] How to avoid expanding variables with sed?

alternatively you could escape the $, if you wanted to mix some expanded vars and some not:

sed -i "s_\$HOME/file_/another/dir/file_g" script.sh

That should also work.