I know there is a better way to do this in Perl - would Net:SSH lend a hand here or is there a steep learning curve? Thanks! 
for HOST in `cat /tmp/hosts`
do
        MODEL=""
        USER=""
        IDLE=""
        RELEASE=""
        host $HOST |grep "not found">>/dev/null
        #Check if the host is switched on and in DNS (due to our autom
+agicaldns entry magic)
        if [ "$?" == "1" ] ; then
                # Grab the model name from AD (remember to kinit)
                MODEL=`/opt/adi/bin/adcat.py -x  computer $HOST|grep M
+odel|awk '{print $3}'`
                # ssh into the box, pick through the last entries, see
+ if a user logged into the console rather than via ssh
                # if so then thats probably the primary user, if nobod
+y logged in then we're SOL.
                USER=`ssh $HOST "last|grep ':0\                       
+  '|awk '{print \\$1}'|head -n1" 2>/dev/null`
                if [ "x$USER" == "x" ] ; then
                        USER="NO-LOCAL"
                fi
                IDLE="0"
                AVERAGE="0"
                SUM="0"
                NUM="0"
                # SSH into the box, for each sar entry display the cpu
+ usage and average it
                for IDLE in `ssh $HOST 'for i in /var/log/sa/sa*; do s
+ar -f $i 2>/dev/null; done' 2>/dev/null|awk '{print $7}'|grep -v idle
+|sed -e s/...$// `
                do
                        SUM=$[$SUM + $IDLE]
                    NUM=$[$NUM + 1]
                done
        AVERAGE=$[$SUM / $NUM]
                RELEASE=`ssh $HOST "uname -r" 2>/dev/null`
        fi
        echo "$HOST $MODEL $USER $IDLE $RELEASE"
done

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In reply to Usage gathering query by Anonymous Monk

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