On 03/02/12 15:05, Jon Dowland wrote:
On 03/02/12 09:55, lina wrote:
On Friday 03,February,2012 05:32 PM, Jon Dowland wrote:
while true; do
ssh server && break
done
Thanks for both of you,
the two ways once ssh server,
it stayed in server and won't come back and proceed the rest.
I don't fully understand your follow-up, but to explain my solution: it
will loop as long as the ssh process returns an error code. So if the
ssh session connects successfully, upon ending the session, it will
return a success code and the loop will stop.
If I understand correctly, the OP was just using the SSH session to
check for connectivity, they don't acually want to run a session at that
point.
If so, the following may work:
while true; do
ssh server : 2>/dev/null && break
done
This will attempt to run the dummy command ":" on "server" (throwing
away any error messages) until successful. It might be an idea to put a
"sleep 10" or something in there too.
--
Dom
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