mjhjmtu

Is it possible to only show the amount of milliseconds when pinging instead of the whole result page?

I want to check if my servers are online, so I want to return "OK xyz ms" or "FAIL". I am currently doing this like so:

#!/bin/sh
ergebnis=$(ping -qc1 google.com) 
ok=$?
avg=$(echo -e "$ergebnis" | tail -n1 | awk 'print $4' | cut -f 2 -d "/")

if [ $ok -eq 0 ]
then
 echo "OK $avg ms"
else
 echo "FAIL"
fi

However, this uses quite a few pipes and since I am running this command pretty often to monitor my servers, I am wondering if there is a "smarter" approach. I am also afraid my pipes might not work properly when the ping command failes.

Another awk variation:

ping -qc1 google.com 2>&1 | awk -F'/' 'END print (/^rtt/? "OK "$5" ms":"FAIL") '

• 
  -F'/' - treat slash / as field separator

Example output:

OK 47.090 ms

There’s not much you can do with ping itself, but you can do all the processing in AWK, reducing the number of pipes, processes etc.:

ping -qc1 google.com 2>&1 | awk -F/ '/^rtt/ printf "OK %.2f msn", $5; ok = 1 END if (!ok) print "FAIL" '

If you are not too concerned about the exact error message then how about

ping google.com | grep -Po "time.*"