GONE(1) BSD General Commands Manual GONE(1)NAMEgone — a terminal locking utility with many improvements over lock
SYNOPSISgone [-bvpxl] [-y | -n] [-t timeout]
DESCRIPTIONgone is a utility that locks a terminal with a password chosen by the
user. gone will prompt the user for a password, then print the gone ban‐
ner, then drop into the gone shell. From this shell, only a restricted
set of commands can be run. gone will also disallow messages by removing
permissions on the parent tty. After the timeout period (10 minutes by
default), gone will automatically log the user out.
If gone is installed setuid to root, then specifying the -p option will
instruct gone to read the password from the system password file/database
instead of prompting the user. Setuid'ing the program is done by setting
the environmental variable with_setuid to ``yes'' then running configure.
Options:
-b Supress printing the gone banner.
-v Print the version number and exit.
-p Read the password from the system password database (must be
setuid root at install-time).
-x Supress processing of extended shell commands (see the sec‐
tion on shell commands below).
-l Prevent VTY switching if supported by the platform.
-y By default gone turns messages off (see mesg(1) ). This
option will turn messages on.
-n Same as the -y option (deprecated).
-t timeout Specify an optional timeout value in minutes. Default is 10
minutes. If set to 0, gone will lock the terminal indefi‐
nitely.
gone also accepts an optional string that is visible by using the w(1)
command. Use this, and other users can see why you are gone.
SHELL COMMANDS
Commands for the gone shell (these commands can be abbreviated):
w Invoke a UNIX w(1) command (extended command).
finger Invoke a UNIX finger(1) command. When you type finger , you will
be prompted for optional arguments (extended command).
whoami Invoke a UNIX whoami(1) command (extended command).
help Print the gone banner, and list of valid commands.
cls Clear the screen and print the gone banner.
date Invoke the UNIX date(1) command (extended command).
unlock Unlock the terminal; prompts for unlock password.
FILES
/usr/local/bin/gone Gone binary application
MINUTIAE
* gone will only run if the user is logged into a valid tty.
* Invoking a SIGINT, a SIGSTP, or a SIGQUIT will cause gone to print the
time remaining before the user is logged out.
BUGS
No known bugs, but I welcome any bug reports or comments to <marcus@mar‐
cuscom.com>
AUTHOR
Joe Marcus Clarke <marcus@marcuscom.com>
ACKNOWLEDGEMENTS
Dr. Burt "THE Doctor" Rosenberg, for motivating, for being a good friend,
and for having a great jump shot.
Alexandra Loubeau, for using the damn thing.
Jason Glick for giving me the quota to do most of the initial work...and
for Joe Satriani.
Craig Kolthoff for installing it on jaguar....finally; and for giving me
a monster quota for FreeBSD.
Blake Winton <bwinton@iname.com>, for contributing the patch for indefi‐
nite terminal locking.
BSD October 13, 2003 BSD
