I Used the code given in the example solution but for some reason when I type the command one of the three commands I got the following error
bash: forward_backward: command not found
Hi @s.albuqami,
The problem is that you are typing the argument after the script has finished, then when you type forward_backward
, bash complains that the command does not exist.
The way you have to call your script is:
./ex3_4_script.sh forward_backward
rather than
./ex3_4_script.sh
# script finished here
forward_backward