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1992-10-14
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PASSWD SUPERUSER COMMANDS 10-Jul-1991
NAME
passwd, chfn, finger - change user information
SYNOPSIS
passwd -l List users
passwd user Change password
passwd -f user Change full name
passwd -d user Finger user
passwd -q user Change quota (superuser only)
passwd -p user Change priviledges (superuser only)
passwd -a usr passwd fullname home
Add user (superuser only)
chfn [username]
finger [username]
DESCRIPTION
passwd changes a password or full name (-f option)
associated with the user username. chfn is equivalent to
passwd with the -f option and finger is equivalent to passwd
with the -d option.
When changing a password, passwd prompts for the old
password and then for the new one. You must supply both,
and the new password must be typed twice to forestall
mistakes.
New passwords should be at least five characters long, if
they combine upper-case and lower-case letters, or at least
six characters long if in monocase. Users that persist in
entering passwords will be accepted.
Only the owner of the name or the superuser may change a
password; the owner must prove he knows the old password.
When changing a full name, passwd displays the current full
name, enclosed between brackets, and prompts for a new full
name. If you type a RETURN, the full name is not changed. If
the full name is to be made blank, you must type the word
"none".
The superuser may change anyone's full name; normal users
may only change their own.
When you request the user's data, passwd displays user's
login name, full name, home directory, user level, last
login, and quota. Then passwd informs whether user has
unread mail, and if so, when is it last arrived at. After
that users .project and .plan files are showd, if they are
available.
With the -q option you can change user quotas. Unset
defaults to 50M.
Priviledges can be changed with the -p option followed with
the user name we are changing.
Users can be added with -a option, but you MUST remember to
create the home directory for the user.
OPTIONS
-l List users
-f Change the full name.
-d Display information about the user specified.
-q Change quota.
-p Change priviledge levels
-a Add user to system
FILES
AXsh:etc/passwd file containing all user information
AXsh:etc/passwd.old file containing only demo-user
AXsh:spool/mail/$USER user's system mailbox
~/.plan user's plan-file
~/.project user's project-file
SEE ALSO
finger, password, mail
NOTES
Password algorithms do not work with 8-bit characters. This
maintains consistency with login file naming rules, which do
not allow 8-bit characters in login names. See login for
explanations about why login is not 8-bit clean.