Bash Cookbook

How to do it...

 Let's start our activity as follows:

1. Open a terminal and create the recursive_read_input.sh script:

#!/bin/bashfunction recursive_func() {    echo -n "Press anything to continue loop "    read input    recursive_func}recursive_funcexit 0

2. Execute the $ bash recursive_read_input.sh script—press Enter at the prompt and wait for another prompt.
3. Exit the program with Ctrl + C.
4. Open a terminal and create the loop_for_input.sh script:

#!/bin/bashfor (( ; ; ))
do
   echo "Shall run for ever"
   sleep 1
doneexit 0

5. Execute the $ bash loop_for_input.sh script—press Enter at the prompt and wait for another prompt.

 

6. Exit the program with Ctrl + C.
7. Open a terminal and create the loop_while_input.sh script:

#!/bin/bashEXIT_PLEASE=0while : # Notice ...