How to Install and Use the Linux Bash Shell on Windows 10

Windows 10’s Bash Shell

This isn’t a virtual machine, a container, or Linux software compiled for Windows (likeCygwin). Instead, Windows 10 gains a Windows Subsystem for Linux, which is based on Microsoft’s abandoned Project Astoria work for running Android apps on Windows

http://www.howtogeek.com/249966/how-to-install-and-use-the-linux-bash-shell-on-windows-10/

Advanced Bash-Scripting Guide by LDP

The tutorial assumes no previous knowledge of scripting or programming, but progresses rapidly toward an intermediate/advanced level of instruction . . . all the while sneaking in little nuggets of UNIX® wisdom and lore. It serves as a textbook, a manual for self-study, and a reference and source of knowledge on shell scripting techniques. The exercises and heavily-commented examples invite active reader participation, under the premise that the only way to really learn scripting is to write scripts.
This book is suitable for classroom use as a general introduction to programming concepts.

Follow the link : Advanced Bash Scripting

What is "the shell"?

Simply put, the shell is a program that takes your commands from the keyboard and gives them to the operating system to perform. In the old days, it was the only user interface available on a Unix computer. Nowadays, we have graphical user interfaces (GUIs) in addition to command line interfaces (CLIs) such as the shell.

On most Linux systems a program called bash (which stands for Bourne Again SHell, an enhanced version of the original Bourne shell program, sh, written by Steve Bourne) acts as the shell program. There are several additional shell programs available on a typical Linux system. These include: ksh, tcsh and zsh.

Advanced Bash-Scripting Guide

Advanced Bash-Scripting Guide 

version:	6.4
author:	Mendel Cooper, <thegrendel.abs(at)gmail.com>
last update:	Aug 2011
available formats:	HTML (read online) HTML (read online, single file, 2.3M) HTML (tarred and gzipped package, 656K) PDF (2.6M) PostScript (1.4M) text (495K) PluckerDB (677K)

Advanced Bash-Scripting Guide

 Advanced Bash-Scripting Guide

version:	6.3
author:	Mendel Cooper, <thegrendel.abs(at)gmail.com>
last update:	Apr 2011
available formats:	HTML (read online) HTML (read online, single file, 2.2M) HTML (tarred and gzipped package, 649K) PDF (2.6M) PostScript (1.4M) text (489K) PluckerDB (669K)

This document is both a tutorial and a reference on shell scripting with Bash. It assumes no previous knowledge of scripting or programming, but progresses rapidly toward an intermediate/advanced level of instruction. The exercises and heavily-commented examples invite active reader participation. Still, it is a work in progress. The intention is to add much supplementary material in future updates to this document, as it evolves into a comprehensive book that matches or surpasses any of the shell scripting manuals in print.