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#!/bin/sh
 
servers=("t1000.unix-center.net" "x4100.unix-center.net" "opensolaris.unix-center.net" "fedora.unix-center.net" "ubuntu.unix-center.net" "freebsd.unix-center.net" "aix.unix-center.net")
svrcnt=${#servers[@]}
 
function go()
{
	if [ $1 -ge $svrcnt ]; then
		echo "server not exist"
		exit
	fi
	echo "going ${servers[$1]}"
	ssh iver@${servers[$1]}
}
 
if [ $# -eq 1 ]; then
	go $1
else
	echo "Usage: $0 target\n"
	i=0
	while [ $i -lt $svrcnt ]
	do
		echo $i":" ${servers[$i]}
		((i++))
	done
fi