Bash Scripting Tutorial for Beginners

onebuck · 05-21-2019, 08:41 AM

Hi,

Bash Scripting Tutorial for Beginners

Quote:

The default command language of Linux is Bash script. We need to run many commands in Linux on a daily basis for many purposes. These daily tasks can be automated by using a bash script. Any user can learn this scripting language very easily and quickly. If you are new in bash programming then this tutorial is for you.

If you wish to enhance your BASH script understanding then I suggest the following;

Quote:

Bash Beginners Guide 
Bash Reference Manual 
Advanced Bash-Scripting Guide

Hope this helps.
Have fun & enjoy!

Didier Spaier · 05-22-2019, 02:56 PM

I will add a link to the table of contents of the POSIX specification of the Shell Command Language of which BASH is an implementation with additions (also known as POSIX extensions). As stated in "man bash" BASH can behave exactly as stated in the aforementioned document, using the --posix option:

Code:

       --posix
              Change the behavior of bash where the default operation differs from  the  POSIX  standard  to
              match  the  standard  (posix  mode).   See  SEE  ALSO below for a reference to a document that
              details how posix mode affects bash's behavior.

This can be useful for people wanting to write so-called "portable" shell scripts, i.e. than can run the same way using any POSIX compliant shell, not only BASH (which is the most common, but not ubiquitous).