Bash Script: Number of Arguments

Number of arguments is in variable $#, example is script numarg.sh

#!/bin/bash
echo "number of arguments: $#"

Executing script: 
$ ./numarg.sh arg1 arg2 arg3
Number of arguments: 3

Variable $# doesn't count script name, only arguments.

Arguments are stored in variables $1, $2... or in $@ as array.