Bash How to Save Output of a Command to a Variable

At times when writing a bash script you want to want to save the output of a command to a variable, in such case, you can use the following syntax.

Example 1: $() Syntax:

    vaiable_name = $(command)

    echo $whoami_variable


    Example - Save Command output to variable

Example 2: `` Syntax:

    vaiable_name = `command`

    echo $whoami_variable

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