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dundarious • yesterday at 9:03 PM • 3 replies • view on HN

You can't sudo echo and redirect from the non-sudo shell like that.

    echo 3 | sudo tee /proc/sys/vm/drop_caches
or

    sudo sh -c 'echo 3 > /proc/sys/vm/drop_caches'
Also fixed your typo in /proc...

Replies

throw0101c • yesterday at 9:21 PM

Also try:

     sudo sysctl -w vm.drop_caches=3
wpollock • yesterday at 9:32 PM

Or more simply, use

   su -c 'echo 3 > /proc/sys/vm/drop_caches'
➕ show 1 reply
john_strinlai • yesterday at 9:09 PM

thanks. copy pasting from the github via my phone, and should have taken the extra few mins

➕ show 1 reply