how to understand awk

chenil · 04-18-2014, 11:00 AM

I want to understand attached energy_wireless.awk.

Please guide me.

grail · 04-18-2014, 11:55 AM

Exactly what guidance are you looking for?

Are you saying you have looked through the manual and none of what is contained in the script makes sense?

knudfl · 04-18-2014, 02:55 PM

"energy_wireless.awk" is an "awk script for ns2 trace files".

Using, example : $ ns wireless-flooding.tcl
.. will create the trace file "wireless-flooding-DumbAgent.tr"

Code:

$ awk -f energy_wireless.awk wireless-flooding-DumbAgent.tr                                        
No of pkts send                 43
No of pkts recv                 65
Pkt_delivery_ratio:             151.163
Control_overhead:               0
Normalized_routing_overheads:   0
Delay:                          0.00385983
Throughput:                     224612
Jitter:                         0.0082657
No of Pkts Dropped              -22
Dropping_Ratio:                 -51.1628
Total_Energy_Consumption:       0
Avg_Energy_Consumption:         0
Overall Residual Energy:        -23
Avg Residual Energy:            -1

chenil · 04-19-2014, 12:25 PM

Quote:

Originally Posted by grail

Exactly what guidance are you looking for?

Are you saying you have looked through the manual and none of what is contained in the script makes sense?

Yes i am unable to understand the content..how to write awk?

can you send me any ".awk" script along with a ".tr" and explanation about how to write it?
I am fully confused..

knudfl · 04-19-2014, 01:20 PM

https://www.google.com/webhp?hl=all#...w+to+write+awk

chenil · 04-19-2014, 01:22 PM

Quote:

Originally Posted by knudfl

https://www.google.com/webhp?hl=all#...w+to+write+awk

What is need of ".sh" file in implementation?

knudfl · 04-19-2014, 02:17 PM

# 6 .

Quote:

What is need of ".sh" file ...

Do you mean a shell script / bash script ? And which one ?

grail · 04-20-2014, 08:43 AM

Well I see nothing from the original script that is very hard to understand assuming you have read the manual.

In case you had trouble using google or any other search engine to find one:

http://www.gnu.org/software/gawk/man...ode/index.html

After reading the manual, please advise which part you are confused about?

Quote:

can you send me any ".awk" script along with a ".tr" and explanation about how to write it?

Not sure what a ".tr" is, but as you are asking the question it would be up to you to provide what it is you do not understand and to actually ask a clear question.