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Full Version: Chmos +s --help
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ctrunk514
What does the s flag at the end of chmod do? The man page dose not seem to talk about it.
Corey
The +s sets the "sticky bit" on a file. You can find this in the manpage under "sticky file" and "sticky directories".

eg.
I want mplayer to run with root permissions so that it can access the real-time clock (/dev/rtc), so I set the sticky bit on the mplayer binary so it can run with root permissions:

chmod +s /usr/bin/mplayer

This is somewhat of a security risk, so most people (systems administrators) usually keep a tight check on what files are sticky (or SetUID) for security purposes.
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