Accidentally changed user of root dir
3760
What if I accidentally run command "chmod -R" on system directories (/, /etc, ...)
4209
Monday morning mistake: sudo rm -rf --no-preserve-root /
1566
Change password on root user and user account
133112
How do I change directory back to my original working directory with Python?
102116
How Should I Correct the Owners and Permissions in an OS X User Folder?
43931
mistakenly deleted /boot folder and rebooted
61365
Is it possible to reset all folder permissions?
52811
How to rename the User folder in Windows 10?
3716
How do I add myself back as a sudo user?
131960
Is it safe to rename special user folders?
68330
WINDOWS: Taking Back/Restoring Default Ownership Permissions of directory
89489
How to restore default group/user ownership of all files under /var?
55028
Permissions of /Users keep changing back to drwxrwxrwx
84265
I permanently changed my PATH variable by mistake, and I am unable to login now. How to change my PATH variable to default?
89020
Home folders accessible to other users and should not be, how to fix?
8252
Accidentally deleted 'sudo'
45541
How to fix sudo after "chmod -R 777 /usr/bin"?