ping

nemex · #1 (**permalink**) 12-12-2002

Hi there hope list can help

I'm looking for a command that does the following

lets say i ping a server 00.00.000.00
and this server is up and running how do i get the ping command to return a UP or a Down

meaning
if the command is true do this
if the command is False do this

Regards
Nemex

BSeanD · #2 (**permalink**) 12-12-2002

I'm not sure its as easy as that. I remember when I was using Linux I was able to block pings being returned giving the impression the machine was down/non-existant. I'm guessing you can do that in almost any OS.

You'd want to scan a system with something like nmap, if your using Unix, but of course that sort of thing is frowned upon if it's not your own machine.

Kevin Pryke · #3 (**permalink**) 12-12-2002

To see if a ping has worked, check the return value ($?)

ie. something like

Code:

ping -c1 <server_name>
if [ $? -ne 0 ]
then
    echo "Not Found"
else
    echo "Found
fi

added code tags for readability --oombera

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