change real user name and information
see also :
chsh - passwd
add an example, a script, a trick and tips
chfn -r "$useremail"
$username environement ..."
mv debian/tmp/usr/bin/chsh debian/tmp/usr/bin/chsh.moira
mv debian/tmp/usr/share/man/man1/chsh.1 \
mv debian/tmp/usr/share/man/man1/chfn.1 \
# Why does distclean not deal with these two
command changes user fullname, office room number, office
phone number, and home phone number information for a user's
account. This information is typically printed by
finger(1) and similar programs. A normal user may
only change the fields for her own account, subject to the
restrictions in /etc/login.defs. (The default configuration
is to prevent users from changing their fullname.) The
superuser may change any field for any account.
Additionally, only the superuser may use the -o
option to change the undefined portions of the GECOS
must not contain any colons. Except for the other
field, they should not contain any comma or equal sign. It
is also recommended to avoid non-US-ASCII
characters, but this is only enforced for the phone numbers.
The other field is used to store accounting
information used by other applications.
which apply to the chfn command are:
Change the user's full
Change the user's home phone
Change the user's other GECOS
information. This field is used to store accounting
information used by other applications, and can be changed
only by a superuser.
Change the user's room
Apply changes in the
CHROOT_DIR directory and use the configuration files
from the CHROOT_DIR directory.
Display help message and
Change the user's office phone
If none of the
options are selected, chfn operates in an interactive
fashion, prompting the user with the current values for all
of the fields. Enter the new value to change the field, or
leave the line blank to use the current value. The current
value is displayed between a pair of [ ] marks.
Without options, chfn prompts for the current user
The following configuration variables in /etc/login.defs change
the behavior of this tool:
This parameter specifies which values in the gecos field
of the /etc/passwd file may be changed by regular users using the
chfn program. It can be any combination of letters
f, r, w, h, for Full name, Room
number, Work phone, and Home phone, respectively. For backward
compatibility, yes is equivalent to rwh and
no is equivalent to frwh. If not specified, only
the superuser can make any changes. The most restrictive setting
is better achieved by not installing chfn SUID.
Shadow password suite configuration.
User account information.
login.defs, passwd .