Tuesday, June 8, 2010

Linux Commands

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chown:

Regular users cannot change the ownership of a file, root can only do that. Group can be changed by regular user to the group which the users belongs to.

Example : chown filename

To allow non-root users to change the owner of a file, change the suid of the chown command as given below

chmod u+s chown

Editing a file inline
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sed -i 's/suman/siddhanth/g' testfile

perl -i.bak -pe 's/suman/siddhanth/g' testfile



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