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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)

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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)

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