str2hex.sh

#!/bin/bash

if [[ $# != 1 ]]; then
        echo "Usage: $0 <string>"
        exit 1
fi

function endian() {
        if [[ -z $1 ]]; then echo "No input supplied."; exit 1; fi
        v=$1
        i=${#v}
        while [ $i -gt 0 ]; do
                i=$[$i-2]
                echo -n ${v:$i:2}
        done
}

_hex=$(echo -n "$1" | od -A n -t x1 | tr -d " ")
_little=$(endian $_hex)

echo "String: $1"
echo "Base: $_hex"
echo "Little endian: $_little"