:
##########################################################################
# Shellscript:	hfinger - show if sombody 'finger'ed you
# Version    :	0.1 (beta)
# Project    :	
# Author     :	Heiner Steven (heiner.steven@odn.de)
# Written    :	30.08.94
# Category   :	System Administration
# SCCS-Id.   :	$Id: hfinger,v 1.1.1.1 1999/06/15 19:29:05 heiner Exp $
##########################################################################
# Description
#
##########################################################################

PN=`basename $0`			# program name
VER='0.1 (beta)'

# Determine mail program knowing "-s" argument
Mail=mail
[ -x /bin/mailx ] && Mail=mailx

Usage () {
    echo "$PN - show when somebody 'finger's you, $VER (stv '94)"
    exit 1
}

Fatal () {
    for i
    do echo "$PN: $i" >&2
    done
    exit 1
}

: ${LOGNAME:=`who am i | cut -d' ' -f1`}	# receiver of mail
: ${FINGERMSG:=$HOME/TODO}			# file to print
: ${FINGERLOG:=$HOME/lib/finger.log}		# log file
Pipe=${TMPDIR:=/tmp}/info			# innocent name...
Plan=$HOME/.plan

[ $# -gt 0 -a "$1" = "-h" ] && Usage
[ -r $FINGERMSG ] || Fatal "file $FINGERMSG not found"

trap "rm -f $Pipe $Plan; [ -f $Plan.alt ] && mv $Plan.alt $Plan" 0
trap "exit 1" 1 2 3 15

[ -f "$Plan" ] && mv "$Plan" "$Plan".alt

mknod $Pipe p || Fatal "cannot create named pipe"
chmod 744 $Pipe || Fatal "cannot change mode of named pipe"
ln -s $Pipe $Plan || Fatal "cannot create symbolic link"

while :
do
    # cp blocks on write to the named pipe until sombody
    # reads the pipe (i.e. with "finger")
    cp $FINGERMSG $Plan

    # somebody read the file .plan:
    $Mail -s "$PN" $LOGNAME <<!

*** $PN: sombody fingered you (`date`) ***

	$ netstat -n | grep ESTAB
`netstat -n | grep ESTAB`

	$ who
`who`

	$ w
`w`

	$ ps -auxww
`ps -auxww`
!
    echo "`date '+%y-%m-%d %H:%M:%S'`	somebody fingered me!" >> $FINGERLOG
    sleep 2
done

exit 0				# never reached