display user information
userinfo utility displays information
about the specified user. The fields shown are defined
in master.passwd(5). The encrypted password is only displayed if the
calling user is the superuser.
The options are as follows:
- Do not display anything (quiet mode). This form of the command is useful for scripts which need to check whether a particular user name or UID is already in use on the system.
The user argument may be either a user name or a user ID (UID).
userinfo utility exits 0 if
user exists, and non-zero if it does not.
id(1), passwd(5), groupinfo(8), user(8)
userinfo utility first appeared in
userinfo utility was written by
Alistair G. Crooks