chfn - change your finger information
chfn [-f full-name] [-o office] [-p
office-phone] [-h home-phone] [-u] [-v]
chfn is used to change your finger information. This information is
stored in the /etc/passwd file, and is displayed by the finger
program. The Linux finger command will display four pieces of
information that can be changed by chfn: your real name, your work room
and phone, and your home phone.
Any of the four pieces of information can be specified on the
command line. If no information is given on the command line, chfn
enters interactive mode.
In interactive mode, chfn will prompt for each field. At a
prompt, you can enter the new information, or just press return to leave the
field unchanged. Enter the keyword "none" to make the field
chfn supports non-local entries (kerberos, LDAP, etc.) if
linked with libuser, otherwise use ypchfn(1), lchfn(1) or any
other implementation for non-local entries.
-f, --full-name full-name
Specify your real name.
-o, --office office
Specify your office room number.
-p, --office-phone office-phone
Specify your office phone number.
-h, --home-phone home-phone
Specify your home phone number.
Display help text and exit.
Display version information and exit.
chfn reads the /etc/login.defs configuration file (see
login.defs(5)). Note that the configuration file could be distributed
with another package (e.g., shadow-utils). The following configuration items
are relevant for chfn:
Returns 0 if operation was successful, 1 if operation failed or command syntax
was not valid.
Salvatore Valente <email@example.com>
Indicate which fields are changeable by chfn
The boolean setting "yes" means that only the
Office, Office Phone and Home Phone fields are changeable, and boolean
setting "no" means that also the Full Name is
Another way to specify changeable fields is by abbreviations: f =
Full Name, r = Office (room), w = Office (work) Phone, h = Home Phone. For
example, CHFN_RESTRICT "wh" allows changing work and home
If CHFN_RESTRICT is undefined, then all finger information
is read-only. This is the default.