Shell Programming and Scripting

bash: /nas/sbin/nas_pool: No such file or directory

#!/bin/sh
# Linux/UNIX box with ssh key based login
SERVERS="192.168.1.1"  ## I have changed the ip addresses for security reason.
# SSH User name
USR="nasadmin"
 
# Email 
SUBJECT="Server user login report"
EMAIL="abcdefgh@gmail.com"
EMAILMESSAGE="/tmp/emailmessage.txt"
 
# create new file
>$EMAILMESSAGE
 
# connect each host and pull up user listing
for host in $SERVERS
do
echo "--------------------------------" >>$EMAILMESSAGE
echo "* HOST: $host capacity report " >>$EMAILMESSAGE
echo "--------------------------------" >>$EMAILMESSAGE
echo "for host $host "
ssh $USR@$host /nas/sbin/nas_pool -size -all >> $EMAILMESSAGE
done
 
# send an email using /bin/mail
/bin/mail -s "$SUBJECT" "$EMAIL" < $EMAILMESSAGE