Shell scripting provides an easy and powerful programming method to help you save time by automating a lot of your repeated manual tasks.
Shell Scripting Related Interview Questions
So we came up with twenty frequently asked Shell scripting questions that you should prepare to answer during interviews. Being a Shell script programmer, you should be aware of the different shells available on the Linux OS.
And before even writing or executing a shell script, you must make sure that you are using the right Shell where the script is intended to run. So keeping a tab on the Shell environment will help you avoid any hassle that could have appeared at runtime.
Also, if you are serious about preparing for a Linux interview, then do read the below posts to give full throttle to your preparations. Linux Commands. Linux Interview Questions — Beginners. Must-know Linux Interview Questions.
We can write a bash script that can accept arguments from the command line in the following manner. Each parameter corresponds to the position of the argument on the command line.
It moves the parameter list to the left. First of all, assign the execute permission for the script and then execute it.
Kindly make sure to supply the directory name as an argument while running the test script. Suppose the input number is n.
What is a Shell?
Set reverse and single digit to 0 i. Decrease the input number n by 1.
If n is greater than 0, then go to step no. Else, execute the step no.
In Linux or Unix-like system, you may come across file names including the following special characters, white spaces, backslashes and more. Bash shell considers most of the above special characters as commands. The simplest way to delete files having special characters in its name is by using the inode number.
Shell Scripting Crash Course - Beginner Level
It reads data from the terminal as the user enters it from the keyboard. And stores into a variable. Must Know Linux Interview Questions.