comp.lang.idl-pvwave archive: archive » TRICKY TASK USING AWK

Home » Public Forums » archive » TRICKY TASK USING AWK

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: TRICKY TASK USING AWK [message #92797 is a reply to message #92796]

Tue, 01 March 2016 01:50

Mats Löfdahl
Messages: 263
Registered: January 2012

Senior Member

Den tisdag 1 mars 2016 kl. 10:37:36 UTC+1 skrev Mats Löfdahl:
> Den tisdag 1 mars 2016 kl. 07:12:13 UTC+1 skrev Sapna Mishra:
>> Hi Heinz Stege ,
>> Error is as following:
>>
>> IDL> cmd ='awk -v var="$i" ''{print $var}'' ' + fname[i] + ' > ' + fnameo[i]
>> % Variable is undefined: I.
>> % Execution halted at: $MAIN$
>> IDL> print,'awk -v var="$i" ''{print $var}'' ' + fname[i] + ' > ' + fnameo[i]
>> % Variable is undefined: I.
>> % Execution halted at: $MAIN$
>> IDL>
>
> I think you need to do that inside the loop to get a useful error message. Or just set i to something between 0 and c.

Just guessing here, since we don't have the actual error message where IDL complains about the non-existence of fnameo[i]: is fnameo an array with c elements? In that case, your loop should go from 0 to c-1 rather than from 1 to c.

Or, since the complaint was only about fnameo and not fname, and you set fnameo[i] to 'tmp' inside the loop: is perhaps only fname an array while fnameo is undefined before you enter the loop? In that case, just substitute "fnameo" for "fnamao[i]" in the loop. Twice, of course.

Report message to a moderator

[Message index]

		TRICKY TASK USING AWK By: Sapna Mishra on Fri, 26 February 2016 01:20
		Re: TRICKY TASK USING AWK By: dg86 on Fri, 26 February 2016 04:03
		Re: TRICKY TASK USING AWK By: Sapna Mishra on Fri, 26 February 2016 06:55
		Re: TRICKY TASK USING AWK By: Mats Löfdahl on Fri, 26 February 2016 07:09
		Re: TRICKY TASK USING AWK By: Sapna Mishra on Mon, 29 February 2016 07:57
		Re: TRICKY TASK USING AWK By: Paul Van Delst[1] on Mon, 29 February 2016 08:07
		Re: TRICKY TASK USING AWK By: Heinz Stege on Mon, 29 February 2016 09:33
		Re: TRICKY TASK USING AWK By: Sapna Mishra on Mon, 29 February 2016 08:58
		Re: TRICKY TASK USING AWK By: wlandsman on Mon, 29 February 2016 09:44
		Re: TRICKY TASK USING AWK By: Sapna Mishra on Mon, 29 February 2016 22:08
		Re: TRICKY TASK USING AWK By: wlandsman on Tue, 01 March 2016 07:39
		Re: TRICKY TASK USING AWK By: wlandsman on Tue, 01 March 2016 19:36
		Re: TRICKY TASK USING AWK By: Sapna Mishra on Mon, 29 February 2016 22:12
		Re: TRICKY TASK USING AWK By: Mats Löfdahl on Tue, 01 March 2016 01:37
		Re: TRICKY TASK USING AWK By: Mats Löfdahl on Tue, 01 March 2016 01:50

Previous Topic:	Looping through structures
Next Topic:	Segmentation fault (core dumped)

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 13:55:01 PDT 2025

Total time taken to generate the page: 0.00470 seconds