[SOLVED] Error when using AWK script

Nindu · 10-07-2014, 08:55 AM

hello everyone
I m working on ns2.35 ubuntu 12.04
when i try to use awk script for genthroughput, instant jitter, e2e delay using command
awk -f filename.awk ns.trc >aodv.xg
then it always show that
awk: cannot open genthroughput.awk(No such file or directory)
bt it works fine for pdf (pdf and other scripts are in the same folder)
plz help me as soon as possible thanx
this z my 2nd post (nobody give reply to my first post

)

knudfl · 10-07-2014, 10:14 AM

Not sure you will get any usable Xgraph file.xg with
$ awk -f genthroughput.awk ns.trc > aodv.xg
* Please remember <space> :
$ awk -f genthroughput.awk ns.trc >[space]aodv.xg

File not found : Not easy to guess.
But you don't have to type any file names.
* Please take advantage of "bash completion" :
$ awk -f gen<TAB>
* And please remember : There can be no spaces in file names.

Examples, xgraph file creating, post #195 here :
http://www.linuxquestions.org/questi...26/page13.html

P.S. : Your other posts were answered ..... some time ago.

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Nindu · 10-07-2014, 02:37 PM

thanx sir, command works and shows

Average Throughput[kbps] = -0.00
StartTime=400.00
StopTime=0.00

what changes i need to do ?

i read somewhere that packet size which is used in tcl script same is used in genthroughput.awk, it doesnt work

knudfl · 10-07-2014, 03:08 PM

← #3 .

Well, then please try out some of the other *th*.awk,
and perl scripts from "awk_scripts-06.2014.tar.bz2".
Download link https://drive.google.com/file/d/0B7S...ew?usp=sharing
→ →
avg_throughput.awk
avg_throughput-zigbee.awk
chainThroughput.pl
flow-thr.awk
genthroughput.awk
instantThroughput.awk
instantThroughputStll.awk
thpt.awk
thr_drop_delay.awk
thr-one.pl
Throughput2007.awk
throughput-8.pl
throughput-9.pl
throughput_newtrace.awk
thruput.awk
updown-link-thr.pl
wireless-thr.awk

Nindu · 10-08-2014, 05:10 AM

HELLO Knudfl
i tried all scripts some works and others show the error no such file or directory
when i use

genthroughput.awk it gives

Code:

 
Average Throughput[kbps] = -0.00  StartTime=400.00	StopTime=0.00

instantjitter.awk

Code:

 # flow   flowType   src   dst      time          jitter1          jitter2          jitter3          jitter4

NRL_ot.awk

Code:

 awk: NRL_ot.awk:22: (FILENAME=ns.trc FNR=1885840)fatal: division by zero attempted

e2edelay.awk

Code:

 
awk: e2e delay.awk:91: (FILENAME=aodv.xg FNR=4)  fatal: division by zero attempted

plz help me

Nindu · 10-08-2014, 05:47 AM

I m using following awk scripts

genthroughput.awk

Code:

BEGIN {

       recvdSize = 0

       startTime = 400

       stopTime = 0

  }

   

  {

             event = $1

             time = $2

             node_id = $3

             pkt_size = $8

             level = $4

   

  # Store start time

  if (level == "AGT" && event == "s" && pkt_size >= 512) {

    if (time < startTime) {

             startTime = time

             }

       }

   

  # Update total received packets' size and store packets arrival time

  if (level == "AGT" && event == "r" && pkt_size >= 512) {

       if (time > stopTime) {

             stopTime = time

             }

       # Rip off the header

       hdr_size = pkt_size % 512

       pkt_size -= hdr_size

       # Store received packet's size

       recvdSize += pkt_size

       }

  }

   

  END {

       printf("Average Throughput[kbps] = %.2f\t\t StartTime=%.2f\tStopTime=%.2f\n",(recvdSize/(stopTime-startTime))*(8/1000),startTime,stopTime)

  }

instantjitter.awk

Code:

BEGIN {
	num_recv = 0
	printf("# %10s %10s %5s %5s %15s %16s %16s %16s %16s\n\n", \
	       "flow","flowType","src","dst","time","jitter1","jitter2","jitter3","jitter4")
}

{
	# Trace line format: normal
	if ($2 != "-t") {
		event = $1
		time = $2
		if (event == "+" || event == "-") node_id = $3
		if (event == "r" || event == "d") node_id = $4
		flow_id = $8
		pkt_id = $12
		pkt_size = $6
		flow_t = $5
		level = "AGT"
	}
	# Trace line format: new
	if ($2 == "-t") {
		event = $1
		time = $3
		node_id = $5
		flow_id = $39
		pkt_id = $41
		pkt_size = $37
		flow_t = $45
		level = $19
	}
		
	# Store packets send time
	if (level == "AGT" && flow_id == flow && node_id == src &&
	    sendTime[pkt_id] == 0 && (event == "+" || event == "s") && pkt_size >= pkt) {
		sendTime[pkt_id] = time
	}

	# Store packets arrival time
	if (level == "AGT" && flow_id == flow && node_id == dst &&
	    event == "r" && pkt_size >= pkt) {
		recvTime[pkt_id] = time
		num_recv ++
	}
}

END {
	# Compute average jitter
	jitter1 = jitter2 = jitter3 = jitter4 = tmp_recv = 0
	prev_time = delay = prev_delay = processed = currTime = 0
	prev_delay = -1
	for (i=0; processed<num_recv; i++) {
		if(recvTime[i] != 0) {
		        tmp_recv++
			if(prev_time != 0) {
				delay = recvTime[i] - prev_time
				e2eDelay = recvTime[i] - sendTime[i]
				if(delay < 0) delay = 0
				if(prev_delay != -1) {
					jitter1 += abs(e2eDelay - prev_e2eDelay)
					jitter2 += abs(delay-prev_delay)
					jitter3 += (abs(e2eDelay-prev_e2eDelay) - jitter3) / 16
					jitter4 += (abs(delay-prev_delay) - jitter4) / 16
				}
				# This 'if' is introduce to obtain clearer
				# plots from the output of this script
				if(delay >= tic*10) {
					printf("  %10g %10s %5d %5d %15g %18g\n", \
						flow,flow_t,src,dst,(prev_time+1.0),0)
					printf("  %10g %10s %5d %5d %15g %18g\n", \
						flow,flow_t,src,dst,(recvTime[i]-1.0),0)
				}
				currTime += delay
				if (currTime >= tic) {
					printf("  %10g %10s %5d %5d %15g %16g %16g %16g %16g\n", \
						flow,flow_t,src,dst,recvTime[i],jitter1*1000/tmp_recv, \
						jitter2*1000/tmp_recv,jitter3*1000,jitter4*1000)
					jitter1 = jitter2 = jitter3 = jitter4 = 0
					currTime = 0
					tmp_recv = 0
				}
				prev_delay = delay
				prev_e2eDelay = e2eDelay
			}
			prev_time = recvTime[i]
			processed++
		}
	}
}

END {
	printf("\n\n")
}

function abs(value) {
	if (value < 0) value = 0-value
	return value
}

NRL_ot.awk

Code:

BEGIN{

recvd = 0;#################### to calculate total number of data packets received

rt_pkts = 0;################## to calculate total number of routing packets received

}



{

##### Check if it is a data packet

if (( $1 == "r") && ( $7 == "cbr" || $7 =="tcp" ) && ( $4=="AGT" )) recvd++;



##### Check if it is a routing packet

if (($1 == "s" || $1 == "f") && $4 == "RTR" && ($7 =="AODV" || $7 =="message" || $7 =="DSR" || $7 =="OLSR")) rt_pkts++;

}



END{

printf("##################################################################################\n");

printf("\n");

printf("Normalized Routing Load = %.3f\n", rt_pkts/recvd);

printf("\n");

printf("##################################################################################\n");

}

e2edelay.awk

Code:

BEGIN {



    seqno = -1;    



#    droppedPackets = 0; 



#    receivedPackets = 0; 



    count = 0;



}



{



    if($4 == "AGT" && $1 == "s" && seqno < $6) {



          seqno = $6;



    } 

#	else if(($4 == "AGT") && ($1 == "r")) {



#            receivedPackets++;



#    } else if ($1 == "D" && $7 == "tcp" && $8 > 512){



#            droppedPackets++;            



#  } 



    #end-to-end delay



    if($4 == "AGT" && $1 == "s") {



          start_time[$6] = $2;



    } else if(($7 == "tcp") && ($1 == "r")) {



        end_time[$6] = $2;



    } else if($1 == "D" && $7 == "tcp") {



          end_time[$6] = -1;



    } 



}



 

END {        

  

    for(i=0; i<=seqno; i++) {



          if(end_time[i] > 0) {



              delay[i] = end_time[i] - start_time[i];



                  count++;



        }



            else



            {



                  delay[i] = -1;



            }



    }



    for(i=0; i<=seqno; i++) {



          if(delay[i] > 0) {



              n_to_n_delay = n_to_n_delay + delay[i];



        }         



    }



   n_to_n_delay = n_to_n_delay/count;



 



    print "\n";



#    print "GeneratedPackets            = " seqno+1;



#    print "ReceivedPackets             = " receivedPackets;



#    print "Packet Delivery Ratio      = " receivedPackets/(seqno+1)*100

#"%";



#    print "Total Dropped Packets = " droppedPackets;



    print "Average End-to-End Delay    = " n_to_n_delay * 1000 " ms";



    print "\n";



}

knudfl · 10-08-2014, 05:54 AM

← #6 .

The code in post #6 must be in code tags.
http://www.linuxquestions.org/questi....php?do=bbcode
http://www.linuxquestions.org/questi...gs-4175464257/
... Please edit post #6 : The 'Edit' button.

* Has the file got a name ? ?

-

Nindu · 10-08-2014, 12:42 PM

i edited the post no 6
plz reply as soon as possible thanx

knudfl · 10-08-2014, 01:18 PM

See post #7.

Please add some file names.
Must be unique names, if they are new files.
NRL isn't a name. "nrl-nindu.awk" or any choice will do.
And no uppercase, please.
Then it looks like you have processed the files with Windows©.
.. And that files should possibly be repaired with $ dos2unix *

-

Nindu · 10-08-2014, 02:52 PM

NRL is in uppercase bcoz m using awk file which is NRL_ot.awk
when m using nrl_ot.awk
it show
awk: fatal: can't open source file `nrl_ot.awk' for reading (No such file or directory)

szboardstretcher · 10-08-2014, 03:01 PM

Please spell out your words and do not use text-speak. You will get more replies to a better written and properly spelled question.

From what I can make out, you are in the wrong directory. Please read your documentation and follow the steps more closely, you will find out that you have forgotten or missed a cd command.

Nindu · 10-08-2014, 03:54 PM

thnx for reply sir
according to me i havn't missed cd command anywhere

Code:

root@ubuntu:/home/nona19# cd ns-allinone-2.35
root@ubuntu:/home/nona19/ns-allinone-2.35# cd ns-2.35
root@ubuntu:/home/nona19/ns-allinone-2.35/ns-2.35# cd tcl
root@ubuntu:/home/nona19/ns-allinone-2.35/ns-2.35/tcl# cd ex
root@ubuntu:/home/nona19/ns-allinone-2.35/ns-2.35/tcl/ex# gedit aodv.tcl
root@ubuntu:/home/nona19/ns-allinone-2.35/ns-2.35/tcl/ex# ns aodv.tcl
num_nodes is set 10
INITIALIZE THE LIST xListHead
10 simulation seconds
20 simulation seconds
30 simulation seconds
40 simulation seconds
|
|
|
|
2040 simulation seconds
2050 simulation seconds
root@ubuntu:/home/nona19/ns-allinone-2.35/ns-2.35/tcl/ex# gedit ns.trc
root@ubuntu:/home/nona19/ns-allinone-2.35/ns-2.35/tcl/ex# awk -f pdf.awk ns.trc > aodv.xg
root@ubuntu:/home/nona19/ns-allinone-2.35/ns-2.35/tcl/ex# gedit aodv.xg
root@ubuntu:/home/nona19/ns-allinone-2.35/ns-2.35/tcl/ex# awk -f e2edelay.awk ns.trc > aodv.xg
awk: fatal: can't open source file `e2edelay.awk' for reading (No such file or directory)
root@ubuntu:/home/nona19/ns-allinone-2.35/ns-2.35/tcl/ex# awk -f e2e\ delay.awk ns.trc > aodv.xg
awk: e2e delay.awk:91: (FILENAME=ns.trc FNR=1885840) fatal: division by zero attempted

szboardstretcher · 10-08-2014, 03:56 PM

Try this:

Code:

cd /home/nona19/ns-allinone-2.35/ns-2.35
find . -name e2edelay.awk

What is the output of those commands?

Nindu · 10-08-2014, 04:17 PM

are u saying like this?

Code:

nona19@ubuntu:~$ cd /home/nona19/ns-allinone-2.35/ns-2.35
nona19@ubuntu:~/ns-allinone-2.35/ns-2.35$ cd tcl
nona19@ubuntu:~/ns-allinone-2.35/ns-2.35/tcl$ cd ex
nona19@ubuntu:~/ns-allinone-2.35/ns-2.35/tcl/ex$ gedit aodv.tcl
nona19@ubuntu:~/ns-allinone-2.35/ns-2.35/tcl/ex$ ns aodv.tcl
num_nodes is set 10
couldn't open "ns.trc": permission denied
    while executing
"open ns.trc w"
    invoked from within
"set nsTrc [open ns.trc w]"
    (file "aodv.tcl" line 209)

knudfl · 10-08-2014, 05:12 PM

Ref. post #12, etc.

Ubuntu 12.04 : Must be a very strange setup you have,
when lower case file names cannot be found / picked up.
→ Strange setup, or a totally wrecked OS.

Quote:

root@ubuntu:/home/nona19/ns-allinone-2.35/ns-2.35

You are not supposed to work as root with any user application.
Root is for administrative tasks only.
The only ns2 commands that will require a root prompt are :
# make install ,,, and # cp ns-<protocol-name> /usr/local/bin/.

About using awk scripts and trace files : Some (most?) files.tr
will make many of the awk scripts choke, and return :
"division by zero attempted".

About using a default awk or perl script to create a file(.xg),
that Xgraph can use : Is not going to work.
* How to create files.tr that Xgraph can plot, see post #2,
.... ~5 examples are attached : xgraph_ns2-files-tcl.2014.tar.gz
* A new link to the "Joe Naoum-Sawaya tcl"
http://www.360doc.com/content/12/122...56135064.shtml
→ "Measure the throughput, packet drop rate,end-to-end delay for UDP-based application".
-