Clear Log

hi all
i’m using mikrotik router os 3.4 and the following command is not clearing the log

/system logging action
set memory memory-lines=1

after that

/system logging action
set memory memory-lines=100

is it different in v 3.4.
or there is some configurations to be made.
Thankyou in Advance

ok let me Revive my question.
is it possible to restrict changing of log even to admin ?
thanks

does any body help me.
instead of telling me to RTFM.
Thanks

As far as I know there is no special policy for logs, that you can restrict per uses groups [RouterOS users].

However these lines are working for me at 3.13 version,

system logging action set memory memory-lines=1
system logging action set memory memory-lines=100