Pipe command allows you to use several commands in the same way, in which the output of one is used as input for another. Like a pipeline, each process output is directly input to the next one. A pipe is represented by the symbol "|". The flow of data through a pipeline is UNIDIRECTIONAL, i.e., from left to right.

Syntax :

You can automate a lot of repetitive manual tasks with shell scripting, which is an easy and powerful programming method. Modern programming languages offer many of the features that make them appealing to programmers. DevOps engineers and automation testers often find this concept vital in preparing for interviews. Shell scripting allows the development of simple to complex scripts. A number of daily tasks can be AUTOMATED using shell scripting as well. We THOUGHT of making your job easier by putting TOGETHER an ensemble of the most frequently asked interview questions and sample answers on shell scripting. These interview questions will DEFINITELY help you understand that shell is basically an interface between the user and the operating system, which interprets user commands to be executed by the kernel or operating system.

Useful Resources:

Unix Interview

Automation Testing Interview

Devops Interview