A Shell script is generally introduced for command sequences for which a user has a repeated use. With the help of shell script, it will be easy for the user to enter a sequence of commands by simply entering the name of the shell script on a command line.
Our shell scripting training covers complete Shell Script basics and other topics to learn and get shell scripting certification.
UNIX shell scripting is designed to run by UNIX/LINUX shell, Different dialects of Shell scripts are made available in the scripting language and there are typical operations that can be performed. Some of the significant Shell script operations are file manipulation, program, execution, and printing text.
Shell scripts are very useful things, whether they’re prepared and saved to a file for regular execution or just entered straight into the command line.
They can perform tasks in seconds that may take days of repetitive work, like, say, resizing or touching up images, replacing text in a large number of HTML documents, converting items from one format to another, or gathering statistics. This entry is a brief introduction to scripting using bash shell. I find to be the most intuitive and probably the most common.
We will explore some of the basic building blocks of scripting, such as while and for loops, if statements, and a few common techniques for accomplishing tasks. Along the way, we’ll also take a look at some of the tools that make shell scripting a bit more useful, such as test, and bc.
This Shell scripting online training is designed for beginners only and this Shell scripting online training explains the basics of shell programming by showing some examples of shell programs. It’s not help or manual for the shell. While reading this tutorial you can find manual quite useful type man bash at $ prompt to see manual pages. Manual contains all necessary information you need, but it won't have that much examples, which makes idea more clear. For that reason, this tutorial contains examples rather than all the features of shell. I assume you have at least working knowledge of Linux i.e. basic commands like how to create, copy, remove files/directories etc or how to use editor like VI or merit and login to your system. Kernel is hart of Linux O/S. It manages resource of Linux O/S. Resources means facilities available in Linux. Kernel decides who will use this resource, for how long and when. Shell scripting online training runs your programs its Memory resident portion of Linux.