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, and other information if desired

initial working directory

program to use as Shell sh(1) or csh(1)

This is an ASCII file.  Each field within each user’s entry is separated 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, the Shell itself sh(1) is used. 

This file resides in directory /etc.  Because of the encrypted passwords, it can and does have general read permission and is used, for example, by ls(1), to map numerical user ID’s to names. 

FILES

/etc/passwd

SEE ALSO

login(1), passwd(1)

7th Edition  —  1/22/82