Mastering Linux Shell Scripting - Second Edition

Hello World!

As you know, it is almost obligatory to begin with a Hello World script and we will not disappoint as far as this is concerned. We will begin by creating a new script, $HOME/bin/hello1.sh. The contents of the file should read as in the following screenshot:

We hope that you haven't struggled with this too much; it is just three lines, after all. We encourage you to run through the examples as you read to really help you instill the information with good hands-on practice.

• #!/bin/bash: Normally, this is always the first line of the script and is known as the shebang. The shebang starts with a comment, but the system still uses ...