Example for loop using bash script on Mac

Be careful when doing this... Note that ALL SPACES MUST BE EXACT. Or else bash will cry:


#!/bin/bash
a=1
while [ $a -le 10 ]
do
echo "Loop number $a"
a=$(( $a + 1 ))
done

Shell scripting for Mac (using bash)

An easy example using vi:


1. Type 'vi myscript' into the terminal.

2. Press 'i' for insert, and type your file. For example:

#!/bin/bash
echo "This is my script. Woo"

3. Press 'esc' key to exit insert mode.

4. Press shift+ZZ to save the file and exit.

5. Change the access rights on your file so it can be executed. For example:

chmod -x myscript

6. Execute your script by typing:

./myscript


That should get you started :)