2. Very simple Scripts

This HOW-TO will try to give you some hints about shell script programming strongly based on examples. [Reference: Z shell]

In this section you'll find some little scripts which will hopefully help you to understand some techniques.

2.1 Traditional hello world script

          #!/bin/bash          
          echo Hello World    
        

This script has only two lines. The first indicates the system which program to use to run the file. .:: telegra.ph ::.

The second line is the only action performed by this script, which prints 'Hello World' on the terminal. [Issues with Nginx] .:: chromewebstore.google.com ::. .:: jalalive5com12.mystrikingly.com ::.

If you get something like ./hello.sh: Command not found. Probably the first line '#!/bin/bash' is wrong, issue whereis bash or see 'finding bash' to see how sould you write this line.

2.2 A very simple backup script

        #!/bin/bash          
        tar -cZf /var/my-backup.tgz /home/me/
        

In this script, instead of printing a message on the terminal, we create a tar-ball of a user's home directory. This is NOT intended to be used, a more useful backup script is presented later in this document. .:: cinderella.pro ::.