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Re: AWK inside idl [message #92770 is a reply to message #92767]

Fri, 26 February 2016 01:33

Mats Löfdahl
Messages: 263
Registered: January 2012

Senior Member

Den fredag 26 februari 2016 kl. 06:50:26 UTC+1 skrev Sapna Mishra:
> IDL> spawn, "awk '{print $2 }' data2.dat >tmp1", result, error_result
> IDL> print,error_result
>
> IDL>
>
> i.e it is not printing anything

You say data2.dat is not empty, but does it have any lines with the second field that $2 refers to? Do you get any tmp1 file if you execute the awk command directly at the shell prompt?

Hmmm, I guess if there are no second fields the file should still be created but with empty lines.

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[Message index]

		AWK inside idl By: Sapna Mishra on Thu, 25 February 2016 11:18
		Re: AWK inside idl By: Michael Galloy on Thu, 25 February 2016 17:46
		Re: AWK inside idl By: Sapna Mishra on Thu, 25 February 2016 20:24
		Re: AWK inside idl By: Michael Galloy on Thu, 25 February 2016 21:23
		Re: AWK inside idl By: Sapna Mishra on Thu, 25 February 2016 21:50
		Re: AWK inside idl By: Mats Löfdahl on Fri, 26 February 2016 01:33
		Re: AWK inside idl By: Sapna Mishra on Fri, 26 February 2016 02:07
		Re: AWK inside idl By: Mats Löfdahl on Fri, 26 February 2016 05:38

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