delete files older than x days 



$ find /path/to/folder/*.file -mtime +1 -exec rm -f {} \;

1. Find all the files in the given path
2. -mtime, specifies the number of days old than today. 
    +1, tells files older than 1 day.
3. -exec, executes the given command like "rm -f"
4. {} \; , ends the command

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