====== Bash: arguments ======

Access to parameters with variables ''$@'' or ''$*''.
Both expands to the positional parameters, starting from one.

  * ''$@'' When the expansion occurs within double quotes, each parameter expands to a separate word. That is, ''"$@"'' is equivalent to ''"$1" "$2" ...''
  * ''$*'' When the expansion occurs within double quotes, it expands to a single word with the value of each parameter separated by the first character of the IFS special variable