w
From main menu or from E-Mail: [U] allows you to search the userlog for a particular user. You can ask for a [F]ull list or [S]earch for a user. If you [S]earch, you will be asked for a pattern of characters to match usernames against. Any user that has the sequence of characters that you specify in his/her username will be output. To find a user whose name has the letters `CAT' in it, you would type `CAT' at the pattern prompt. The results might look like this:
AUNTIE CAT
CAT
CHESHIRE CAT