Bash also provides ways of comparing string and this is the topic of this tutorial. In the following section, I will show you ways and examples of how to compare strings in Bash Shell scripting.
The Bash case statement can be taken as a nice and easily readable solution to the nested-if statements.
In case statement, you may test several values for one variable.
The while is used to execute one or more commands (statements) until the given condition is True. As the condition becomes false, the execution moves to the next line of code outside of the while loop.
The if is one of the decision making statement in Bash Shell scripting. It enables us executing the one block of code (to perform certain action) among the two or more blocks.
All programming languages have loops to let the programmers iterate through the code blocks, so Bash is not an exception.