Cron job to run fstrim

fstrim

#!/bin/sh

# Script to do SSD trim operations
# Based on: http://askubuntu.com/questions/18903/how-to-enable-trim

if [ "$(cat /sys/class/power_supply/AC/online)" = "0" ]
then
    # running off the battery: abort
    exit 0
fi

# all mount points of SSD drives:
SSD_MOUNT_POINTS='/ /boot /home'

for mount_point in $SSD_MOUNT_POINTS
do  
    fstrim $mount_point  
done