Use ssh to connect to the server perform the following steps.
1. Change the directory to /var directory using the following command.
cd /var
2. Execute the following command to list all of the files you plan to delete.
find ittrium -name \*.*~
3. Once you have verified that the files listed above are all backup files that you want to delete, you can execute the following command.
find ittrium -name \*.*~ | xargs rm
Note that this command will only remove files with the standard backup extension that ends with the tilde (~) character. Directories with the tilde extension will not be removed.
NOTE NOTE: BE EXTREMELY CAREFUL USING THIS COMMAND SINCE YOU COULD EASILY DELETE THE WRONG FILES OR EVEN ALL FILES IF YOUR SYNTAX IS INCORRECT.