Bash shell script shift operation

#!/bin/bash

echo "passed arguments: $1 $2 $3.. array $@"
shift
echo "passed arguments: $1 $2 $3.. array $@"

declare -a arr=("sankar" "suriya" "pal" )

echo "length of array arr: ${#arr[@]}"

echo -e "$@"
shift 2

echo -e "$@"

echo "array ${arr[@]}"