Free up your memory on linux

this script does help me much on my linux :


------ cut ---------------


#!/bin/sh
sync; echo 3 > /proc/sys/vm/drop_caches


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then chmod 755 the script.. test first before put it in cron


#free -m  ( to check before and after running the script )


this cron will run once on every 30 minutes


*/30 * * * * path-to-your-script