Shell key word

The term "keyword" in the context of a shell usually refers to a command or an instruction that has a specific meaning to the shell interpreter. In other words, it is a word or phrase that triggers a specific action or behavior when entered in a shell prompt.

There are numerous keywords available in different shell environments, such as Bash, PowerShell, or Zsh. These keywords are typically built-in and have predefined functions within the shell.

To find a list of keywords specific to your shell, you can use the `help` command followed by the keyword `reserved` or `keywords`. For example, in Bash, you can run `help reserved` or `help keywords` to display a list of reserved words or keywords respectively.

Let's look at an example. If you're using a Bash shell, open a terminal and type `help keywords`. You will see a list of various keywords used in the Bash shell, including `if`, `while`, `for`, `case`, and `do`, among others. These keywords are fundamental for constructing conditional statements, loops, and other control structures in shell scripting.

By understanding and using these keywords, you can leverage the power of the shell and write more advanced scripts to automate tasks or manipulate data efficiently.