Not able to sudo after running `chown -R username:usergroup /*`
3760
What if I accidentally run command "chmod -R" on system directories (/, /etc, ...)
131429
Why can't sudo find a command after I added it to PATH?
92883
/etc/profile not sourced for `sudo su`
13760
How do I grant sudo privileges to an existing user?
38815
chown -R root.root /
107509
Undo sudo rm -R /*
56561
How do I add myself into the sudoers group?
26943
sudo error, is mode 0777, should be 0440
116598
Environment variables when run with 'sudo'
100263
Root directory '/' locked after using chmod
20355
Sudo is also user login password - why? how to change?
33039
How to gain sudo access after powerwashing (factory resetting) my computer?
89652
Lost access to sudo
16597
No password prompt at sudo command
120352
Why does chown report "Operation not permitted" on OS X?
8625
/usr/bin/sudo must be owned by uid 0 and have the setuid bit set
58819
Sudo not available in guest login