#!/bin/bash

show_help() {
    echo "Usage: `basename $0` [--grep-str|-g string]"
    echo "Options:"
    echo "  --help              | -h          (Optional) Display help information on how to use this script"
    echo "  --grep-str <string> | -g <string> (Optional) Specify a customized string for grepping the process description"
}

grep_str='8788'

while [ "$#" -gt 0 ]; do
    case "$1" in
        --help|-h) show_help; exit ;;
        --grep-str|-g) grep_str="$2"; shift 2;;
        *) shift ;;
    esac
done

function confirm() {
    while true; do
        read -p '' yn
        case $yn in
            [Yy]* ) return 0;;
            [Nn]* ) return 1;;
            [Cc]* ) exit;;
            * ) echo "Please answer YES, NO, or CANCEL.";;
        esac
    done
}

process_out=`ps -A -U $(whoami) --format pid=,cmd= | grep $grep_str | sed -n '2p'`
IFS=' ' read -r p_id p_cmd <<< "$process_out"

echo "CMD: \"$p_cmd\""
printf "\n"
echo "Kill it? (Yy/Nn/Cc)"

if confirm; then
    kill -9 $p_id
    echo "[INFO] Process was killed."
else
    echo "[INFO] Process was not killed."
fi