1. Create a bash script that says "hello world"

#!/bin/sh

#The code below says hello world

echo “hello world!!!!”  



2. Add sleep and date

#!/bin/sh
echo “hello world!!!”
sleep 2
date 



3. Add sleep and say

sleep 2
say “cheeseburger"



4. Move your script into /usr/local/bin so it will run by default

cp hello-world.sh /usr/local/bin/hello-world
sudo chmod 777 /usr/local/bin/hello-world



5. Create a "for loop"

#!/bin/sh
for files in *.png
do echo "$files"
done