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 user’s real name, office, extension, home phone. initial working directory program to use as Shell The name may contain ‘&’, meaning insert the login name. This informa‐ tion is set by the chfn(1) command and used by the finger(1) command. This is an ASCII file. Each field within each user’s entry is sepa‐ rated from the next by a colon. Each user is separated from the next by a new-line. If the password field is null, no password is demanded; if the Shell field is null, then /bin/sh is used. This file resides in directory /etc. Because of the encrypted pass‐ words, it can and does have general read permission and can be used, for example, to map numerical user ID’s to names. Appropriate precautions must be taken to lock the file against changes if it is to be edited with a text editor; vipw(8) does the necessary locking. FILES /etc/passwd SEE ALSO getpwent(3), login(1), crypt(3), passwd(1), group(5), chfn(1), fin‐ ger(1), vipw(8), adduser(8) BUGS User information (name, office, etc.) should be stored elsewhere. 7th Edition January 8, 1986 PASSWD(5)