POC shell script for keeping only the last 30 files. Useful for archives.

keeping-30files.sh

#!/bin/bash

cd /var/backup/files

let count=1
for each_file in $(ls -1t); do
    if [ $count -le 30 ]; then
      echo "[$each_file] - good"
      let count=$count+1
    else
      echo "[$each_file] - EXPIRED!"
    fi
done