Need help creating ksh script

[sjcrane]

I want to monitor a netstat command as follows:

# netstat -Aan|grep 4800|grep LISTEN
f1000e0017a12bb8 tcp4 0 0 *.4800 *.* LISTEN

So I want the script to run this and if there is a return of "LISTEN" do nothing..

If it returns nothing email alert to recipients.

So if:

# netstat -Aan|grep 4800|grep LISTEN
f1000e0017a12bb8 tcp4 0 0 *.4800 *.* LISTEN (Do Nothing)
#

#netstat -Aan|grep 4800|grep LISTEN (email recipients)
#

Any help would be appreciated...

 

[TSch]

Hello sjcrane,

this should help you:

#!/usr/bin/ksh

netstat -an | grep 4800 | grep LISTEN > /dev/null

if [ $? -ne 0 ];
then
echo "Mailbody" | mail -s "Mailheader" recipients
fi

Regards,
Thomas