Pinging Host Post: 302961944

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Special Forums UNIX Desktop Questions & Answers Pinging Host Post 302961944 by Don Cragun on Monday 7th of December 2015 12:03:12 AM

12-07-2015

Registered User

Quote:

Originally Posted by 5sku5

I need to ping websites and I need to see which one has the highest delay.

My problem is I need to extract the name Facebook and the time=74.0 ms using awk. I need help doing this please...

Code:

PING facebook.com (173.252.90.36) 56(84) bytes of data.
64 bytes from edge-star-mini-shv-13-atn1.facebook.com (173.252.90.36): icmp_req=1 ttl=76 time=74.0 ms

--- facebook.com ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 74.087/74.087/74.087/0.000 ms
PING pbs.org (23.21.237.247) 56(84) bytes of data.

You say you want to extract Facebook from the data you showed us, but that string does not appear anywhere in the data you showed us.

Are all of the time values in milliseconds? I.e., do you need to extract the string ms, or do you just need the number following time=? (If you're trying to find a maximum time, it is much easier to get what you want if you are comparing numeric values instead of comparing alphanumeric strings. For example, as a number 11 is greater than 9, but the string "9 ms" is lexically greater than "11 ms".)

Why do you want "74 ms" instead of the "max" entry out of:

Code:

rtt min/avg/max/mdev = 74.087/74.087/74.087/0.000 ms

i.e., 74.087?

Do all of the ping entries you're processing just have one packet transmitted? (I.e., is what you showed us representative data of the input you're trying to process?)

What have you tried to solve this problem on your own?

Don Cragun

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LEARN ABOUT DEBIAN

mrtg-ping-probe

MRTG-PING-PROBE(1)					      General Commands Manual						MRTG-PING-PROBE(1)

NAME

       mrtg-ping-probe - ping probe module for Multi Router Traffic Grapher

DESCRIPTION

       mrtg-ping-probe is a ping probe module for MRTG 2.x.  It is used to monitor the round trip time and packet loss to networked devices.  MRTG
       uses the output of mrtg-ping-probe to generate graphs visualizing minimum and maximum round trip times or packet loss.

       mrtg-ping-probe is not run directly, but is called by MRTG as a helper when it needs to determine ping time to a host.

       Act responsibly: do not use mrtg-ping-probe to ping devices without the owner's permission.  Just imagine if 10,000 people decided to  ping
       your hosts!  mrtg-ping-probe is meant to be used within your network to get round trip time performance figures for your network.

OPTIONS

       To  use	mrtg-ping-probe you need to configure MRTG to call it from within the definition of a target host. This is done in the MRTG config
       file, which is usually /etc/mrtg.conf.

       Here's an example snippet: change the target name and IP address to suit your needs.

       Target[your.target.ping]: `/usr/bin/mrtg-ping-probe 123.456.789.123`
       SetEnv[your.target.ping]: MRTG_INT_IP="123.456.789.123" MRTG_INT_DESCR="ping"
       MaxBytes[your.target.ping]: 100
       AbsMax[your.target.ping]: 200
       Options[your.target.ping]: gauge, growright
       YLegend[your.target.ping]: ping time (ms)
       ShortLegend[your.target.ping]: ms
       Legend1[your.target.ping]: Maximum Round Trip Time in ms
       Legend2[your.target.ping]: Minimum Round Trip Time in ms
       Legend3[your.target.ping]: Maximal 5 Minute Maximum Round Trip Time in ms
       Legend4[your.target.ping]: Maximal 5 Minute Minimum Round Trip Time in ms
       LegendI[your.target.ping]: &nbsp;Max:
       LegendO[your.target.ping]: &nbsp;Min:

       Pay close attention to the backticks in the first line which tell MRTG to execute the nominated external program. Note also that  you  need
       to use the "gauge" option, since the results of subsequent ping probes are independant values and not an incrementing counter.

SEE ALSO

       mrtg(1).

       The latest release of mrtg-ping-probe can be found on the web at http://pwo.de/projects/mrtg/

AUTHOR

       This manual page was written by Jonathan Oxer <jon@debian.org>, for the Debian project (but may be used by others).

								  April 14, 2003						MRTG-PING-PROBE(1)

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