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command to change original file

 
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# 1  
Old 11-08-2011
command to change original file
I have a script where I have the command

sed "s/$search_string/$replace_string/g" $backup

However I want a command to correct the original file $backup as well as creating another file with the changes which I have in my script already. In other words, I want to touch the orginal file also writing to st out.

---------- Post updated 11-08-11 at 05:05 PM ---------- Previous update was 11-07-11 at 11:45 PM ----------

Just wondering if anyone can help me...............
# 2  
Old 11-08-2011
You agreed not to bump posts when you registered.

Code:
sed "s/$search_string/$replace_string/g" $backup | tee /tmp/$$
cat /tmp/$$ > $backup

 
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