Linux shell script to get pid by process name.

gitpid.sh

#!/bin/bash

readonly CMD="${@:1}"

if [ "$CMD" == "" ]
then
    echo "usage: $0 <command>"
    exit 1
fi

ps --no-headers -ax -o "pid,command" | grep "$CMD" | grep -v "grep $CMD" | awk '{$1=$1};1' | cut -d ' ' -f 1 | grep -v $$

Usage:

./getpid.sh my-web-server