I am currently using Lubuntu 18.04
I thought that theese are the 3 right code lines to drop cache:
sync; echo 1 > /proc/sys/vm/drop_caches
sync; echo 2 > /proc/sys/vm/drop_caches
sync; echo 3 > /proc/sys/vm/drop_caches
I've tried three all with and without sudo and the output is permission denied.
sudo sync; echo 1 > /proc/sys/vm/drop_caches
bash: /proc/sys/vm/drop_caches: Permission denied
I have all windows closed, no applications running but still permission denied...
I am clearly doing something wrong, Could anyone tell me which is the right way to drop caches in Lubuntu?
Thanks in advance