Changing user database information

While trying to setup a finger server on my VPS, I was faced with the problem of updating information associated with my user account, like office location and phone number.

It turns out that there is a utility for doing that: `chfn`.

Just call `chfn` as the user you want to edit (root can access the whole user database, see man-page for details), and it will fire up an editor where you can edit the following information - at least on FreeBSD:

Login:              user's login name
Password:           user's encrypted password
Uid:                user's login
Gid:                user's login group
Class:              user's general classification
Change:             password change time
Expire:             account expiration time
Full Name:          user's real name
Office Location:    user's office location
Office Phone:       user's office phone
Home Phone:         user's home phone
Other Information:  any locally defined parameters for user
Home Directory:     user's home directory
Shell:              user's login shell

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