topic Re: shell scriptf for ping in Operating System - Linux

shell scriptf for ping

Shivkumar — Tue, 27 Sep 2005 00:56:27 GMT

Dear Sirs;

I need to know shell script which performs ping to couple of servers every 15 minutes and records the output in a file.

Thanks,
Shiv

Re: shell scriptf for ping

VEL_1 — Tue, 27 Sep 2005 01:00:13 GMT

Refer the following simple script

#!/sbin/sh
i=1
while [ $i -eq 1 ]
do
for str in $hosts
do
echo "" >>output_file
ping $str >>output_file 2>&1
if [ $? -ne 0 ]
then
echo "There is problem while nslookup $str" >>output_file 2>&1
i=0
fi
done
sleep 900
done

Re: shell scriptf for ping

VEL_1 — Tue, 27 Sep 2005 01:00:56 GMT

Sorry. Ignore my previous reply.

#!/sbin/sh

hosts="abc.xx.com xyz.ab.com"

i=1
while [ $i -eq 1 ]
do
for str in $hosts
do
echo "" >>output_file
ping $str >>output_file 2>&1
if [ $? -ne 0 ]
then
echo "There is problem while nslookup $str" >>output_file 2>&1
i=0
fi
done
sleep 900
done

Re: shell scriptf for ping

Muthukumar_5 — Tue, 27 Sep 2005 01:01:00 GMT

#!/bin/ksh
# Input
server1=
server2=
stime=900

while [ 1 ]
do

date >> /tmp/ping_$server1.log
ping $server1 -n 1 >>/tmp/ping_$server1.log
[[ $? -eq 0 ]] && echo "Ping success " || echo "Ping failure" >>/tmp/ping_$server1.log
date >> /tmp/ping_$server2.log
ping $server2 -n 1 >>/tmp/ping_$server2.log
[[ $? -eq 0 ]] && echo "Ping success" || echo "Ping failure" >>/tmp/ping_$server2.log

sleep 900

done

hth.

Re: shell scriptf for ping

Muthukumar_5 — Tue, 27 Sep 2005 01:01:25 GMT

Raj,

You try of,

ping $str >>output_file 2>&1

will not end ;). Use count with ping.

hth.

Re: shell scriptf for ping

Muthukumar_5 — Tue, 27 Sep 2005 01:03:26 GMT

Shiv,

If you are going to setup these scripts in productive environment plz use cron + scripting as,

#!/bin/ksh
# Input - Must
server1=
server2=
stime=900

date >> /tmp/ping_$server1.log
ping $server1 -n 1 >>/tmp/ping_$server1.log
[[ $? -eq 0 ]] && echo "Ping success " || echo "Ping failure" >>/tmp/ping_$server1.log 2>&1
date >> /tmp/ping_$server2.log
ping $server2 -n 1 >>/tmp/ping_$server2.log
[[ $? -eq 0 ]] && echo "Ping success" || echo "Ping failure" >>/tmp/ping_$server2.log 2>&1

# end
exit 0

# Cron Tab Setting
0,15,30,45 * * * * /tmp/ping.ksh 1>/dev/null 2>&1

Re: shell scriptf for ping

Arunvijai_4 — Tue, 27 Sep 2005 01:04:27 GMT

No need to use stime as you can use sleep 900 in your script.. Crisp & Concise ;)

-Arun

Re: shell scriptf for ping

VEL_1 — Tue, 27 Sep 2005 01:05:07 GMT

Sorry. Thought of solaris platform.

Re: shell scriptf for ping

Geoff Wild — Tue, 27 Sep 2005 07:49:20 GMT

Sounds like you are doing some monitoring....why not purchase OVO?

If you can't afford it, have a look at Big Brother:

http://www.bb4.org/

Rgds...Geoff

Re: shell scriptf for ping

Rajesh SB — Tue, 27 Sep 2005 08:23:26 GMT

Hi,

This is my script use for one project.

#!/usr/bin/ksh
> /home/rajeshsb/sysstat.log
> /home/rajeshsb/downlist
for sys in `cat /home/rajeshsb/sys.list`
do
/etc/ping $sys -n 2 |grep ms >> /home/rajeshsb/sysstat.log
if [ $? -ne 0 ]
then
echo "$sys is down" >> /home/rajeshsb/downlist;
else
echo "$sys is up" > /dev/null;
fi
done
if [ -s /home/rajeshsb/downlist ]
then
cat /home/rajeshsb/downlist| mailx -s "Warning! Down System details" rajeshsb@india.hp.com
mailx -s "Warning! Down System details" rajeshsb@india.hp.com < /home/rajeshsb/downlist
fi

Usage:
The script "sysstat.sh" reads the list of systems from file "/home/rajeshsb/sys.list"
It logs as well sends the email to me
Keep on add the systems into sys.list.

Just schedule the scritp in cron.

Regards,
Rajesh

Re: shell scriptf for ping

Raj D. — Tue, 27 Sep 2005 09:15:31 GMT

Hi Shiv ,

Here is a ping script attached , please run that in cron , and it will check your servers always...and you will have a good sleep. For any system down , it will page you.

copy to a directory and put the path there.

Add in crontab :
------------------------------------------
10,20,30,40,50,59 * * * * /home/shiv/upstat > /dev/null 2>&1
--------------------------------------------
Put all server names, one by one , in servers.list

Enjoy,
Cheers,
Raj.

Re: shell scriptf for ping

Leif Halvarsson_2 — Tue, 27 Sep 2005 09:46:37 GMT

Hi,

Try instead the fping program. It is much better for this kind of tests.

http://3d2f.com/programs/2-515-fping-download.shtml

Re: shell scriptf for ping

Raj D. — Tue, 27 Sep 2005 13:40:58 GMT

Shiv,

You should be running the ping script from a server , which not in your server list. So ir will monitor all server.

The command to be use :

# ping -c n servername
[ n is number of ping counts , servername is = SERVER ]

ex:
# ping -c 3 dbserver

Cheers,
Raj.