Bueno’s trash

 sudo aptitude install clusterssh

vim cgo.sh

#!/bin/sh
 
if `echo $* | grep "*" > /dev/null`; then
        servers=""
        server=`echo $1 | cut -d* -f1`
        for x in `egrep ^$server ~/.ssh/known_hosts | cut -d, -f1`
        do
                servers="$servers $x"
        done
        cssh $servers
        exit
fi
 
if `echo $2 | egrep '^[0-9]' > /dev/null ` &&  `echo $3 | egrep '^[0-9]' > /dev/null`; then
        servers=""
        for x in `seq $2 $3`
        do
                servers="$servers "$1""$x""
        done
        cssh $servers
        exit
fi
 
cssh $*
exit

 complete -F _known_hosts traceroute traceroute6 tracepath tracepath6 \
ping fping telnet host nslookup rsh rlogin ftp dig ssh-installkeys mtr cgo.sh