Limit top by user

'top' is a usful command which provides a dynamic real-time view of a running system and something most people use regularly. However, a lot of people don't know that the output can be limited on a per user basis. 'top -u username' will just give output for the given user.

The following can be useful for shell scripts etc to perform 'top' for the current user:

top -u $(whoami)