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Old 11-27-2007, 10:44 AM   #16
matthewg42
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Registered: Oct 2003
Location: UK
Distribution: Kubuntu 12.10 (using awesome wm though)
Posts: 3,530

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If you want to use the new group, you can use su to start a new login shell. For example:
Code:
# First I create a user bob (I set the passwd too):
matthew% sudo useradd bob

# Then log in as bob and execute id to see my groups etc.
bob% id
uid=1001(bob) gid=1001(bob) groups=1001(bob)

# In my normal session I add bob to the audio group:
matthew% sudo usermod -aG audio bob

# Back in bob's shell this change isn't seen...
bob% id
uid=1001(bob) gid=1001(bob) groups=1001(bob)

# But I can use su to create a new login shell as a child of the original shell.
# This new login shell will have the new group seting:
bob% su - bob
bob% id
uid=1001(bob) gid=1001(bob) groups=29(audio),1001(bob)

# When bob closes the shell with exit, he goes back to the parent shell, without
# the new group:
bob% exit
bob% id
uid=1001(bob) gid=1001(bob) groups=1001(bob)
The point is that you can use su to temporarily get the new group setting without having to log out and log back in again...
 
Old 05-29-2010, 12:02 AM   #17
secretsharer
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Registered: May 2010
Posts: 1

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solution:

sudo chmod 4755 /bin/chgrp
sudo chgrp root /bin/chgrp (just to be safe)

Last edited by secretsharer; 05-29-2010 at 12:17 AM. Reason: security
 
  


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