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|
#!/bin/sh
#
# slay 2.0 - kill all processes belonging to the specified user(s).
# originally by Chris Ausbrooks <fish@bucket.ualr.edu>
# based on kall (a script of unknown origin)
# Heavily rewritten by Pawel Wiecek <coven@debian.org> for Debian
# Revision history:
# 0.99 First attempt.
# 1.0 Added Butthead.
# 1.1 Added retribution.
# 1.2 Added slayee notification.
# 2.0 Completely rewritten
# 2.1 Fix an *ugly* bug that caused slayer to be slain...
USER=`whoami`
SIGNAL='-KILL'
SLAYEE=''
ME=`basename $0`
COOL='0'
# this piece of nested ifs is added for Debian package only
if [ -f /etc/slay_mode ]
then
if grep -q mean /etc/slay_mode
then
MODE='mean'
fi
if grep -q nice /etc/slay_mode
then
MODE='nice'
fi
if [ -z $SLAY_BUTTHEAD ]
then
if grep -q butthead /etc/slay_mode
then
SLAY_BUTTHEAD='on'
fi
if grep -q normal /etc/slay_mode
then
SLAY_BUTTHEAD='off'
fi
fi
else
MODE='mean'
if [ -z $SLAY_BUTTHEAD ]
then
SLAY_BUTTHEAD='off'
fi
fi
# Command line handling.
while [ $# -gt 0 ]
do
case $1 in
-*)
SIGNAL=$1
;;
*)
SLAYEE="$SLAYEE $1"
esac
shift
done
if [ "$SIGNAL" != "-clean" ]
then
SIGSHOW="$SIGNAL"
else
SIGSHOW="-TERM + -KILL"
fi
# Help for loosers.
if [ "$SLAYEE" = "" -o "$SIGNAL" = "--help" ]
then
echo "usage: $ME [-signal] name [name...]"
if [ "$SLAY_BUTTHEAD" = "on" ]
then
echo " Like, kills people and stuff."
echo " With -clean kicks ass forst and then does real pain."
else
echo " Kills all processes belonging to any of the given names."
echo " Use -clean as a signal name to kill with TERM first and then with KILL."
fi
exit -1
fi
# Misuse trap.
if [ "$USER" != "$1" ]
then
if [ "$USER" != "root" ]
then
if [ "$MODE" = "mean" ]
then
$0 -KILL $USER
else
if [ "$SLAY_BUTTHEAD" = "on" ]
then
echo "${ME}: Cut it out."
else
echo "${ME}: Only root gets to do that."
fi
fi
exit 2
fi
fi
# Main body.
for slayee in $SLAYEE
do
if [ "$slayee" = "$USER" ]
then
if [ "$SLAY_BUTTHEAD" = "on" ]
then
echo "${ME}: Beavis, don't make me have to smack you."
else
echo "${ME}: Illegal operation."
fi
fi
COOL="1"
if [ "$SLAY_BUTTHEAD" = "on" ]
then
echo "${ME}: $SIGSHOW is kicking $slayee's butt!"
echo -e "\\n\\n\\nI'm kicking your butt.\\n\\n\\n" | write $slayee 2>/dev/null
else
echo "${ME}: Sending $SIGSHOW signal to $slayee's process(es)..."
echo -e "\\n\\n\\nYour current session has been terminated.\\n\\n\\n" | \
write $slayee 2>/dev/null
fi
if [ "$SIGNAL" = "-clean" ]
then
su -m $slayee -c "kill -TERM -1 2>/dev/null"
sleep 10
su -m $slayee -c "kill -KILL -1 2>/dev/null"
else
su -m $slayee -c "kill $SIGNAL -1 2>/dev/null"
fi
done
# Error message.
if [ $COOL = "0" ]
then
if [ "$SLAY_BUTTHEAD" = "on" ]
then
echo "${ME}: How old are you, Beavis?"
else
echo "${ME}: Nothing done."
fi
exit 1
fi
# Non-error message.
if [ $COOL = "1" ]
then
if [ "$SLAY_BUTTHEAD" = "on" ]
then
echo "${ME}: Whoa, I have the power supreme."
else
echo "${ME}: Done."
fi
exit 0
fi
|
