mysql optimizing memory usage for large tables

mysqld error message: a process already exists

[ikbenhet1]

I issue this command:
mysqld_safe --key_buffer_size=64M --table_cache=256 --sort_buffer_size=4M --read_buffer_size=1M &

this is the response:
[root /root]# A mysqld process already exists

How can i execute this command succesfully? Thank u.

[bcolflesh]

End all running mysqld processes first?

[ikbenhet1]

ok, this indeed sounds like a very dumb i have asked.

But i'm asking because the last time i tried something on mysql was the mysql was down for 3 days.

Ok, i'm off to see how to do that..

[ikbenhet1]

removed.