Step1: $vi /home/user1/scripts/my_script.sh

#!/bin/bash
# My first script

echo "Hello World!"

**Setting permissions**
Step2: $chmod 755 my_script (The "755" will give you read, write, and execute permission.
Everybody else will get only read and execute permission. If you want your script to be private (i.e., only you can read and execute), use "700" instead.)

**Putting it in your path**
Step3:
$ echo $PATH
$ export PATH=$PATH:/home/user1/scripts

**Executing the Command**
$my_script