NAME

users − file server user list format

DESCRIPTION

The permanent file servers each maintain a private list of users and groups, in ­/adm/users by convention.  Each line in the file has the format

num:name:leader:members

where ­num is a decimal integer, ­name and ­leader are printable strings excluding the characters ?, =, +, -, /, and :, and ­members is a comma-separated list of such strings.  Such a line defines a user and a group with the given name; the group has a group leader given by ­leader and group members given by the user names in members. The ­leader field may be empty, in which case any group member is a group leader.  The ­members field may be empty. 

Lines beginning with ­# are ignored. 

The ­num in a line is a number used internally by a file server; there should be no duplicate nums in the file. A negative ­num is special: a user with a negative ­num cannot attach to the file server.  The file ­/adm/users itself is owned by user adm, having a negative num, and write protected to others, so it can only be changed via console commands.

SEE ALSO

intro(5), stat(5)

Plan 9  —  December 11, 1999