I’m gonna show you some tricks here that I’ve learned over the years. I hope they help.
Find files named yahoo.com owned by user user
find /dev -user d0ncortez -name ‘yahoo.com’
Find files named CorteZ owned by the group Linux-Team
find /dev -group Linux-Team -name ‘CorteZ’
Find all files on the file-system with the SETUID bits set
find / -perm +4000 -print
Print a list of all directories
find / -type f -print
Print a list of files only
find / -type f -print
Delete all files owned by a specific user
find / -user mean-person -exec rm -rf {} \;
Fix directory permissions on a bunch of directories
find / -type f -exec chmod 644 {} \;
find / -type d -exec chmod 755 {} \;