To delete files older than 7 days with bash, you can use the following command:
find ! -ctime -7 -type f -delete
Let's go through the command step by step:
find
The find command is used to search for files in a directory hierarchy.
! -ctime -7
This is the condition to find files older than 7 days. The ! is used to negate the condition, and -ctime -7 is used to find files that were changed more than 7 days ago.
-type f
This is used to specify that we are looking for files, not directories.
-delete
This option is used to delete the files that match the conditions.