#!/bin/bash

current1=`pwd` 
$current2=`pwd`
current3 = `pwd`
$current4 = `pwd`

echo "\$current1 is $current1"
echo "\$current2 is $current2"
echo "\$current3 is $current3"
echo "\$current4 is $current4"

# this DOESN'T reset current1

$current1=mooooo
echo "\$current1 is NOW $current1"

current1=baaaaaaa
echo "\$current1 is NOW $current1"