10-04-2005
works but not giving right output
in the output file for each line record must match very well, even though some of session doesn't have a GN line. In such case, ID has to match to empty record. Thanks.
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LEARN ABOUT NETBSD
ttyaction
TTYACTION(5) BSD File Formats Manual TTYACTION(5)
NAME
ttyaction -- 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 new-
line 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 ALSO
fnmatch(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