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-   -   Effective UID and Real UID (https://www.linuxquestions.org/questions/linux-newbie-8/effective-uid-and-real-uid-516903/)

Milosevic 01-06-2007 10:23 AM
Effective UID and Real UID
 
Hi everybody,

i'd like to know what is the difference between the real uid and the effective uid (if someone can point out a good source of information it would be enough, i've been googling but things are still confuse in my head).

Cheers, Milosevic

xjlittle 01-06-2007 10:41 AM
I think this is a pretty good summary:
Quote:
Normally these are the same, but if a program with a set-uid bit set is run, then while the real UID remains that of the user who ran it, the effective UID is that of the user who owns the file.
I found it here if you want to read more:
http://unixpapa.com/incnote/setuid.html

hth


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