In Perl `$` is strictly a scalar variable though this can be a reference to an array, hash or object as they are stored as references. Not to be confused with `

In Perl `$` is strictly a scalar variable though this can be a reference to an array, hash or object as they are stored as references. Not to be confused with `$` in PHP which simply denotes a variable of any kind. In Bash `$` denotes the value of a variable.