TTYACTION(5) BSD File Formats Manual TTYACTION(5)NAMEttyaction — ttyaction file format
DESCRIPTION
The ttyaction file specifies site-specific commands to run when a login
session begins and ends. The ttyaction file contains a list of newline
separated records, where each record has the following three fields:
ttyname Name of the tty line(s) on which this line should apply. The
name is relative to the /dev directory, similar to how such
devices are named in the /etc/ttys file.
action Name of the action for which this line should apply. The
action names currently defined are "login", "getty", "telnetd"
and "rlogind" which indicate which program is processing this
file. (Note that "login" begins a login session, while the
other three are run after a login session ends.)
command What command to run if this record matches.
The first two fields are delimited with blanks or tabs, and the command
field is all text to the end of the line. Either or both of first two
fields may contain wildcard match patterns as implemented by the
fnmatch() library function.
All command strings are executed by passing them to /bin/sh -c running as
"root," with an environment containing:
TTY=ttyname
ACT=action
USER=username
PATH=_PATH_STDPATH
These variables may be used directly in the shell command part of the
record for simple tasks such as changing the ownership of related
devices. For example:
console * chown ${USER}:tty /dev/mouse
will chown the mouse appropriately when the console owner changes.
EXAMPLES
Here are some more example records:
tty0 login /somewhere/tty_setup ${TTY}
tty0 getty /somewhere/tty_clean ${TTY}
* * /somewhere/ttyfrob ${TTY} ${ACT}
SEE ALSOfnmatch(3), ttyaction(3)HISTORY
The ideas for the /etc/ttyaction file were inspired by the /etc/fbtab
file under SunOS.
BSD August 24, 1996 BSD
