sudo sync; echo 3 > /proc/sys/vm/drop_caches doesn't work [SOLVED]

kido · Post by **kido** » Fri Sep 14, 2018 4:56 pm

I tried to clean cache with this command

sudo sync; echo 3 > /proc/sys/vm/drop_caches

but after I enter my password I get:

[sudo] password for kido: 
bash: /proc/sys/vm/drop_caches: Permission denied

I have linux mint 18.3.

Someone please tell me: what should I do in this case?

thx-1138 · Post by **thx-1138** » Fri Sep 14, 2018 5:02 pm

sync && sudo sysctl vm.drop_caches=3

kido · Post by **kido** » Fri Sep 14, 2018 5:44 pm

Thank you very much my friend. Works

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