Shell Programming and Scripting

>
> arr=("two words" "one" "more")
>
> prt_arr(){ 
> n_el=$#;        # number of positional parameters could be the same as in arr
>                   # the positional parameters are array, acctualy; 
>                   # no needs to re-assign
>                   # could be accesed with simplified way: $1, $2, .. that is 
>                   # the same, as ${arr[0]}, ${arr[1]}, ...
> while [[ ! -z $* ]]; 
>   do /usr/bin/echo "$1\n"; 
>   shift; 
> done; 
> echo "orig number : $n_el";}
>
>    # now it is important to call in correct way: with @ and in ""
> prt_arr "${arr[@]}"
two words

one

more

orig number : 3
>
>    # other way call does not produce expected result:
> prt_arr ${arr[@]}
two

words

one

more

orig number : 4
> prt_arr ${arr[*]}
two

words

one

more

orig number : 4
> prt_arr "${arr[*]}"
two words one more

orig number : 1
>