fixed duplication bug; swapped 'for' for 'while'

tab-sorcery.sh

@@ -14,7 +14,7 @@ get_hostip () {
 }
 
 zone_xfer=`dig $scan_domain @$scan_ns AXFR | egrep -v 'SOA|NS|MX|DiG' | grep $scan_domain | awk '{print $1,$4,$5}'`
-for host in `echo $zone_xfer | awk '{print $1}'`; do
+while read host <&3; do
 	user_name=$3
 	connect_cmd="ssh -t"
 	host_short=`echo ${host} | awk -F. '{print $1}'`
@@ -36,7 +36,7 @@ for host in `echo $zone_xfer | awk '{print $1}'`; do
 		get_hostip ${host}
 		alias ${host_short}="${connect_cmd} ${user_name}@${host_ip}"
 	fi >/dev/null
-done
+done 3< <(echo $zone_xfer | awk '{print $1}' | uniq)
 
 unset -f get_hostip
 return 0