Shell Script in Linux

Shell Script in Linux and some examples

 Computers understand only binary languages (0's and 1's),  which are very difficult for humans to understand.  So, for Linux OS (Operating System) there is a special program called Shell. This program accepts instructions or commands from users in English, and converts it to binary languages. We can say it is acts as a mediator for kernel - the heart of Linux. Shell uses the system kernel to execute programs and create files etc.

Shell script is defined as the series of commands written in a text file. Shell scripts have more power than the MS-DOS.

Here is some shell script examples in Linux. First create a file with an extension of .sh, for that take a terminal and type command gedit myshell.sh here i have used gedit you can use any editors, and change the file permissions to executable format, for that we are using chmod 755 filename. For executing this file in terminal "./filename or bash filename".

Palindrome:

Output:

 

Chess board:

Output:

Lets have fun with shell script!

Step wave form:

Output: