I just typed "sudo chmod 770 ." on my /usr/bin directory by mistake
[acc]:/usr/bin$ sudo chmod 770 .
Now every time i run a sudo command I get a "Permission denied" error
[acc]~$ sudo
bash: /usr/bin/sudo: Permission denied
When I open a new terminal, i get: "bash: groups: command not found"
Please help me resolve this... :(
You should boot from a LiveCD then do the following:
cd into the /usr/bin folder of that installation you mounted from above.Run this command to give all users execute permissions
sudo chmod -R a+x .
Run this command to give all users read permissions
sudo chmod -R a+r .
Run this command to remove all users (except root's) write permissions
sudo chmod -R o-w .
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