In some cases, you may need to search all files owned by a particular user on a Linux system.
There are times when some of the files owned by a user are outside of his home directory.
To find all files on a server owned by this user, run the following command.
find / -user $USERNAME
Replace $ USERNAME the actual name of the user who owns the searched files.
This command will search the entire filesystem for files owned by a specific user.
So it will take a long time.
It is recommended to save the output to files instead of being displayed on the terminal.
find / -user $USERNAME > user-files.txt
All files owned by this user will be saved in the user-files.txt file.