PASSWD(5) PASSWD(5) NAME passwd - password file DESCRIPTION Passwd contains for each user the following information: name (login name, contains no upper case) encrypted password numerical user ID numerical group ID GCOS job number, box number, optional GCOS user-id initial working directory program to use as Shell This is an ASCII file. Each field within each user's entry is separated from the next by a colon. The GCOS field is used only when communicating with that system, and in other installations can contain any desired information. Each user is separated from the next by a new-line. If the pass- word field is null, no password is demanded; if the Shell field is null, the Shell itself is used. This file resides in directory /etc. Because of the encrypted passwords, it can and does have general read per- mission and can be used, for example, to map numerical user ID's to names. FILES /etc/passwd SEE ALSO getpwent(3), login(1), crypt(3), passwd(1), group(5)