Convert hex encoded ip from mibbit or cgi:irc to dot-decimal format. Useful script from my ircop days.

ipc.sh

#! /bin/bash
# ./ipc.sh $1
# by: Sahal Ansari github.com/sahal
#
# desc: takes input ($1) in form of hex encoded ip from mibbit or cgi:irc
# returns ip in dot-decimal format
#
# use in irssi: /exec (-o) ~/ipc hexip

#ready the input

# capitalize input (not necessary - i was using bc earlier &it requires caps)
# separate every two characters with a ":" (useful when i use cut later)
input=`echo $1 | tr [a-z] [A-Z] | sed 's/../&:/g;s/:$//'` 

#print the ip
for (( i=1; i<=4; i++ ))
do
printf "%d" 0x`echo $input | cut -d ":" -f$i`
if [ "$i" -ne "4" ];
then echo -ne ".";
fi
done

# need that extra return...
echo

cool :)