Kill Stuff by name

skill

#!/bin/bash

#
# Copyright (c) 2006 by Sebastien Mondet.
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
# 

SCRIPT_NAME=$(basename $0)

short_usage()
{
  echo "Cf :  $SCRIPT_NAME  [--help]"
}
long_usage()
{
  echo ""
  echo "User Commands                                                  $SCRIPT_NAME"
  echo ""
  echo "Description   :  send signals with regexps"
  echo
  echo "Usage :"
  echo "-----"
  echo "       $SCRIPT_NAME {--help,-h}"
  echo "       $SCRIPT_NAME [-f] [-9] [-g pattern1] [pattern2] ..."
  echo ""
  echo "Options :"
  echo "-------"
  echo "      --help | -h       : show this help message"
  echo "      -f                : force (no question)"
  echo "      -9                : use -9 for 'kill'"
  echo "      -g pattern        : egrep pattern"
  echo "                   (each arg without option is considered as a '-g' one)"
  echo ""
}
KILL_FLAGS=""
FORCE_FLAG=0

GREP_COUNT=0
GREP_PTNS=""

PID_COUNT=0
PID_NBS=""

if [ "$1" = "--help"  ]
then
  long_usage ;
  exit
fi
if [ $# -eq 0 ]
then
  short_usage ;
  exit
fi
while getopts h9g:f option
do
  case $option in
    9 ) KILL_FLAGS="$KILL_FLAGS -9" ;;
    f ) FORCE_FLAG=1 ;;
    h ) long_usage ; exit ;;
    g ) GREP_COUNT=$(($GREP_COUNT + 1)) ; GREP_PTNS[$GREP_COUNT]=$OPTARG ;;
    \?) short_usage ;  exit 2 ;;
  esac
done

shift `expr $OPTIND - 1`
if [ $# -ne 0 ] ; then
  for arg in $*; do
    GREP_COUNT=$(($GREP_COUNT + 1)) ; GREP_PTNS[$GREP_COUNT]=$arg ;
  done
fi



KILL_CMD_LINE="kill $KILL_FLAGS "


TMP_FILE=/tmp/skill_$$
while [ $GREP_COUNT -ne 0 ]
do
  TMP_GREP=${GREP_PTNS[$GREP_COUNT]}
  ps aux | egrep $TMP_GREP | grep -v "grep" | grep -v 'skill'\
        > $TMP_FILE
  if [ $(cat $TMP_FILE | wc -l) -eq 0 ]
  then
    echo "No PID found for : $TMP_GREP"
  fi
  PIDS=$( cat $TMP_FILE | awk '{ print $2 }' )
  for i in $PIDS
  do
    ANSW="_"
    if [ $FORCE_FLAG -eq 0 ] 
    then
      echo "Do you want to kill :"
      cat $TMP_FILE | grep $i
      # POTENTIAL BUG : $i's father cat appear there...
      printf "[y/n]? "
      read ANSW
    fi
    if [ "$ANSW" = "y" ] || [ $FORCE_FLAG -ne 0 ] 
    then
      $KILL_CMD_LINE $i
      echo $KILL_CMD_LINE $i
    else
      echo "$i will survive"
    fi
  done  
  GREP_COUNT=$(( $GREP_COUNT - 1 ))
done
rm -f $TMP_FILE