hex2ip.sh

#!/bin/sh

#hexaddr=$(awk '$2 == "00000000" {print $3}' /proc/net/route)
hexaddr=$1

# Following line includes 'tac' which inverts the order
#ipaddr=$(printf "%d." $(echo $hexaddr | sed 's/../0x& /g' | tr ' ' '\n' | tac) | sed 's/\.$/\n/')

# No tac used, no inversion
ipaddr=$(printf "%d." $(echo $hexaddr | sed 's/../0x& /g' | tr ' ' '\n') | sed 's/\.$/\n/')


echo $ipaddr