chfn(1) [centos man page]

CHFN(1) 							   User Commands							   CHFN(1)

NAME

       chfn - change your finger information

SYNOPSIS

       chfn [-f full-name] [-o office] ,RB [ -p office-phone] [-h home-phone] -u] [-v] [username]

DESCRIPTION

       chfn  is  used  to change your finger information.  This information is stored in the /etc/passwd file, and is displayed by the finger pro-
       gram.  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.

       chfn is used to change local entries only. Use ypchfn, lchfn or any other implementation for non-local entries.

   COMMAND LINE
       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.

   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 blank.

OPTIONS

       -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.

       -u, --help
	      Print a usage message and exit.

       -v, --version
	      Print version information and exit.

EXIT STATUS

       Returns 0 if operation was successful, 1 if operation failed or command syntax was not valid.

SEE ALSO

       finger(1), passwd(5)

AUTHOR

       Salvatore Valente <svalente@mit.edu>

AVAILABILITY

       The chfn command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.

util-linux							     July 2009								   CHFN(1)

CHFN(1) 							   User Commands							   CHFN(1)

NAME

       chfn - change real user name and information

SYNOPSIS

       chfn [options] [LOGIN]

DESCRIPTION

       The chfn 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
       field.

       These fields 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.

OPTIONS

       The options which apply to the chfn command are:

       -f, --full-name FULL_NAME
	   Change the user's full name.

       -h, --home-phone HOME_PHONE
	   Change the user's home phone number.

       -o, --other OTHER
	   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.

       -r, --room ROOM_NUMBER
	   Change the user's room number.

       -R, --root CHROOT_DIR
	   Apply changes in the CHROOT_DIR directory and use the configuration files from the CHROOT_DIR directory.

       -u, --help
	   Display help message and exit.

       -w, --work-phone WORK_PHONE
	   Change the user's office phone number.

       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 account.

CONFIGURATION

       The following configuration variables in /etc/login.defs change the behavior of this tool:

       CHFN_RESTRICT (string)
	   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.

FILES

       /etc/login.defs
	   Shadow password suite configuration.

       /etc/passwd
	   User account information.

SEE ALSO

       chsh(1), login.defs(5), passwd(5).

shadow-utils 4.5						    01/25/2018								   CHFN(1)