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Re: User Who Modified File

by MidLifeXis (Monsignor)
on Sep 26, 2012 at 15:02 UTC ( #995792=note: print w/replies, xml ) Need Help??

in reply to User Who Modified File

It sounds (from the terms being used) like you are on a Windows system. If, however, you are on a unix system, you should be aware of a few things.

This only works (under unix) if the OS captures extended usage logs, or the edit method creates a new file. An append or a open+trunc+write does not change ownership of the file.

usera$ grep groupa /etc/group groupa::1000:usera,userb usera$ touch foo usera$ chgrp groupa foo usera$ sudo chown userb foo usera$ ls -l foo -rw-rw-r-- 1 userb ... foo usera$ echo Hello World > foo usera$ ls -l foo -rw-rw-r-- 1 userb ... foo

That is not saying that it cannot be done, just that classical unix will not give the correct expected answers in all cases.

On a system with chown for non-superuser privileges, there are even more assumptions being made.


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