Locating a PWWN on a Cisco MDS Fabric by using a script from Linux

#!/bin/bash
for i in `cat $1`
do
ssh admin@<MDS A IP> "fcping pwwn $i vsan 3 count 3" > /dev/null 2>&1
if [ $? -eq 0 ]; then
echo -e "$i Fabric A"
else
ssh admin@<MDS B IP> "fcping pwwn $i vsan 3 count 3" > /dev/null 2>&1
if [ $? -eq 0 ]; then
echo -e "$i Fabric B"
else
echo -e "$i Not Present"
fi
fi
done