I am trying to edit my file using this sed command
sudo sed "s/192[^:]\+ /192.168.56.109/" file
The command outputs the complete file with correct change, but doesn't edit the file. If I open the file it is same as before.
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Benjamin W.
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Quratul Ain Shafiq
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you need either the `-i` option for inplace edit (see the man page) or you have to pipe output into a temp file and move temp file in a second step. – Lars Fischer Apr 11 '16 at 19:55
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-i is not working. I tried it like, >`sudo sed -i "s/192[^:]\+ /192.168.56.109/" file` – Quratul Ain Shafiq Apr 11 '16 at 19:59
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Possible duplicate of [sed edit the file in place](http://stackoverflow.com/questions/12696125/sed-edit-the-file-in-place) – Benjamin W. Apr 11 '16 at 20:01
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if inplace -i option is not working you can do this
sed "s/192[^:]\+ /192.168.56.109/" file > temp && mv temp file
make sure you have a backup though.
karakfa
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Can't it work without this overhead of moving data in different files? – Quratul Ain Shafiq Apr 11 '16 at 20:06
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Well! I tried >`sudo sed -i 's/192[^:]\+ /192.168.56.109/' file`, with single quotes instead of >`sudo sed -i "s/192[^:]\+ /192.168.56.109/" file` and this worked for me... thanks :) – Quratul Ain Shafiq Apr 11 '16 at 20:20