Create Chroot with Busybox nmap arp-scan

#!/bin/bash

start=$PWD
fs=${start}/fs
ARCH="x86_64"
ARCH2="x86"

mkdir $fs
cd $fs
mkdir -pv bin lib dev etc mnt/root proc root sbin sys usr/bin lib/x86_64-linux-gnu
mknod -m 666 dev/null c 1 3
mknod -m 666 dev/tty c 5 0
mknod -m 666 dev/zero c 1 5
mknod -m 666 dev/random c 1 8

echo "nameserver 8.8.8.8" > etc/resolv.conf
echo "search 8.8.8.8" >> etc/resolv.conf

cd bin
wget -c "http://www.busybox.net/downloads/binaries/latest/busybox-$ARCH" -O busybox
chmod +x busybox

./busybox  --help | \
sed -e '1,/^Currently defined functions:/d' \
    -e 's/[ \t]//g' -e 's/,$//' -e 's/,/\n/g' | \
while read app ; do
  if [ "$app" != "" ]; then
    echo "linking ${app}..."
    ln -sf "./busybox" "$app"
    ls -ld "$app"
  fi
done

cd $fs

progDir="/usr/bin/"
progs=("nmap" "arp-scan")

for i in "${progs[@]}"
do
  ldd ${progDir}$i |cut -d\> -f2|awk '{print $1}'|\
    while read lib
    do
      cp ${progDir}$i usr/bin/
      lib2="$(echo "$lib"|sed s'/\///')"
      lib2="$(dirname "$lib2")"
      mkdir -pv $lib2
      cp -v "$lib" "$lib2"
    done
done

#extra files for nmap
mkdir usr/share/nmap
cp -v /etc/services etc/
cp -v /usr/share/nmap/nmap-services usr/share/nmap/

#extra file for arp-scan
mkdir -p usr/share/arp-scan/
cp -v /usr/share/arp-scan/* usr/share/arp-scan/

clear
echo "useage:"
echo "nmap --unprivileged -T4 -v 192.168.1.1-255|grep -v 'host down'"
echo "arp-scan -l -I eth0"
echo "===================================="
echo "WELCOME TO YOUR CHROOT"
chroot $fs sh