Delete text in file using bash script in linux

Question

I want to create an script that deletes few lines from a file containing the following text

you.com
me.ac.id
burger.co.us
manheal.com

If i want to delete this:

burger.co.us

How is the syntax in shell programming??

Brian Agnew · Accepted Answer · 2012-07-20 10:00:09Z

13

sed "/burger.co.us/d" < inputfile > outputfile

will match and delete that line from inputfile and write to outputfile using redirection.

Note that you can't read your input and write to the same file using the above. Instead use the -i field to specify replacement in-place.

See here for more about sed.

answered Jul 20, 2012 at 9:44

Brian Agnew

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2 Comments

Or sed -i -e "/burger.co.us/d" singlefile to replace in-place.

Yes, I think you should add it to your answer before someone tries to do sed ... < file > file :).