Script to kill multiple app spawns

stacksofplates

So some of our applications spawn multiple processes with the same name. I've also manually started the same thing multiple times accidentally. I'm too lazy to either kill each pid separately or do ps aux | grep -i <name> | awk '{ print $2 }' in a for loop. So I made this script. Just pass the grep string that you want to kill or a -i for an interactive session.

#!/bin/bash

#Script to kill multiple spawns of an application

#Script functions
function script_help () {
  echo "
      Usage: $(basename $0) [options] app-name 

          -i   Ineractive mode

          -h   this help text

          app-name       Name of application to kill

      Example:
        $(basename $0) firefox"

  exit ${1:-0}
}

function interactive_kill () {

  echo "Search string"
  read searchString

  for pid in $(ps aux | grep -i $searchString | awk '{ print $2 }')
  do
    kill -9 $pid
  done

  exit ${1:-0}

}

function argument_kill () {

  for pid in $(ps aux | grep -i $searchString | awk '{ print $2 }')
  do
    kill -9 $pid
  done

  exit ${1:-0}



}

#Show help if no arguments or options are passed
[[ ! "$*" ]] && script_help 1
OPTIND=1


#Read command line options
while getopts "ih" opt; do
    case "$opt" in
      i) interactive_kill ;;
      h) script_help ;;
      \?) script_help 1 ;;
    esac
done
shift $(($OPTIND-1));

#Run argument function
searchString=$1
argument_kill

scottalanmiller

Why not just killall?

stacksofplates

@scottalanmiller said in Script to kill multiple app spawns:

Why not just killall?

Mostly just for our use. When we run the distributed solves it opens a process per however many cores we designate for that system, plus a couple other management processes. All of the solver processes have the same name, but the management processes are slightly different. So I'd still have to do a grep for the pid of each.

Plus I'm just doing some practicing.

stacksofplates

I guess I could do a wildcard at the beginning and end of whatever I'm searching for with killall but that freaks me out a little. I could accidentally do a lot of damage with that.