[Help]Ping Exit Status

pyther · 2008-09-10 13:16:35

Hello.

I am trying to ping different gateways to determine what ip address to use (virtual machine). The problem I'm having is that out of 4 pings, 1 ping fails and the other 3 succeeds. Thus exit status returns 1.

I need to return a good exit status (0), if I am receiving any type of ping. How can I go about doing that?

Thanks

filou.linux · 2008-09-10 15:04:30

Hi, could you please post your script... it'd be easier to see what exactly you want to accomplish.

pyther · 2008-09-10 21:39:14

I don't have access to the machine with the script on it now but it basically like this

ifconfig eth0 10.1.20.6 netmask 255.255.255.224

ping -c 4 -w 4 10.1.20.1

if [ $? == 0 ]; then
        echo "Success Connected with Home"
        route add default gw 10.1.20.1
        exit 0
fi

ifconfig eth0 10.25.11.100 netmask 255.255.248

ping -c 4 -w 4 10.25.11.1

if [ $? == 0 ]; then
        echo "Success Connected with School"
        route add default gw 10.25.11.1
        exit 0
fi

And the problem is that sometimes I lose the first ping

fukawi2 · 2008-09-11 02:01:41

Could you do something like:

PING_RESULT=`ping -c 4 -w 4 10.1.20.1 | grep 'bytes from'`
if [ -z "$PING_RESULT" ] ; then
   # FAIL
else
   # GOOD
fi

pyther · 2008-09-15 22:30:12

Thanks, that sort off worked, let me on the right track though.

Ping returns the bytes form line even when all pings fail, but was able to get the successful ping number and compare it to see if it was greater than 0.

thanks again

B-Con · 2008-09-16 05:30:42

Could you do a tight loop of 4 pings, and set a flag to 1 if any of them returns true?

Arch Linux

#1 2008-09-10 13:16:35

[Help]Ping Exit Status

#2 2008-09-10 15:04:30

Re: [Help]Ping Exit Status

#3 2008-09-10 21:39:14

Re: [Help]Ping Exit Status

#4 2008-09-11 02:01:41

Re: [Help]Ping Exit Status

#5 2008-09-15 22:30:12

Re: [Help]Ping Exit Status

#6 2008-09-16 05:30:42

Re: [Help]Ping Exit Status

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