RE: Replace a string inside a file

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To: "'redhat-list@redhat.com'" <redhat-list@redhat.com>
Date: Mon, 15 Sep 2003 14:10:14 -0500

Keith Birchfield wrote:
> Hello all, and thanks for previous help! :-)
>
> Can anyone give me a csh cheat to copy a file with a specific string
> replaced with another?
>
> For example
> copy foo1.txt to foo2.txt and replace each instance of "blue" with
> "red" where
> foo1.txt contains
> apple
> blue syrup
> green apples
> blue
> red grapes
> grapes
>
> and the resulting foo2.txt contains
> apple
> red syrup
> green apples
> red
> red grapes
> grapes
>

cat foo1.txt |sed 's/blue/red/' > foo2.txt

If you have in foo1.txt the text 'bluegreen apples', the above would change
it to be 'redgreen apples'. To separate out the words as single words do:

cat foo1.txt |sed 's/blue /red /' > foo2.txt.

Or do man sed for further information on ways to do the search and replace
you are wanting to do.

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• Previous message: Keith Birchfield: "Replace a string inside a file"
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• Next in thread: Sean Estabrooks: "Re: Replace a string inside a file"
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