I changed the permission for /etc folder. Sudo is not working after that
364
Set myself as owner of /etc with chown command now getting all kinds of errors
1291
I added a user to a group, but group permissions on files still have no effect
45541
How to fix sudo after "chmod -R 777 /usr/bin"?
42571
How do I run a sudo command in Emacs?
56480
sudo: /var/lib/sudo writable by non-owner (040777), should be mode 0700
8252
Accidentally deleted 'sudo'
1983
Can sudo be reinstalled after being removed?
120171
How to reset folder permissions to their default in Ubuntu?
24630
terminator: permission denied for sudo
75815
Why can't I change directory to the current directory with permission denied?
33279
How do I set up a folder so that anything created in it inherits permissions?
7525
Why isn't this sudo mv operation with wildcard working?
100263
Root directory '/' locked after using chmod
47399
Change default permissions for new files and folders
13760
How do I grant sudo privileges to an existing user?
106046
How do I programmatically change file permissions?
66986
Losing permissions by adding capability?