.

Keeping this in consideration, what is in bash scripting?

A Bash script is a plain text file which contains a series of commands. These commands are a mixture of commands we would normally type ouselves on the command line (such as ls or cp for example) and commands we could type on the command line but generally wouldn't (you'll discover these over the next few pages).

Additionally, how do I write a bash script in Linux? Bash as a scripting language. To create a bash script, you place #!/bin/bash at the top of the file. To execute the script from the current directory, you can run ./scriptname and pass any parameters you wish. When the shell executes a script, it finds the #!/path/to/interpreter .

Thereof, what is a bash file in Linux?

GNU Bash or simply Bash is a Unix shell and command language written by Brian Fox for the GNU Project as a free software replacement for the Bourne shell. Bash can also read and execute commands from a file, called a shell script.

What does $() mean in bash?

The $() (dollar sign and parentheses) is POSIX command substitution syntax. As Björn Wehlin correctly pointed out, it does execute the command inside $() and paste back the result of that command. Bash does this by forking a child process and then piping the command back to the parent.