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Old 03-04-2006, 06:54 PM   #1
Registered: Aug 2004
Location: Brisbane, Australia
Distribution: Ubuntu/Fedora
Posts: 86

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SED - replace text in file on specific line

I have the following sed command

sed -e '56s/allow/disallow/g' restrict.txt

It outputs the correct results to the console...however I want it to write the changes back to the file restrict.txt. I tried:

sed -e '56s/allow/disallow/g' restrict.txt > restrict.txt but I end up with a blank txt file.
Old 03-04-2006, 07:01 PM   #2
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Registered: Oct 2003
Posts: 3,057

Rep: Reputation: 58
Try something like this....

sed '56s/allow/disallow/' -i restrict.txt

Last edited by homey; 03-04-2006 at 07:06 PM.


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