environmental vars in nawk

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3 total messages Started by afsijsf Thu, 15 Nov 1990 15:06

#1782

Author: afsijsf
Date: Thu, 15 Nov 1990 15:06

13 lines
779 bytes

 How do you reference an environmental variable (which
happens to be a pathname) inside a nawk script? eg:

setenv CMCARC=/a/b/c

The awk script could be like this:

BEGIN { aa = $CMCARC
        etc...
                  }

Please send e-mail reply.. thanks

Re: environmental vars in nawk

#1802

Author: Richard Karasik
Date: Tue, 20 Nov 1990 02:10

31 lines
1218 bytes

In article <1990Nov15.150642.28752@cid.aes.doe.CA> afsijsf@cidsv01.cid.aes.doe.CA () writes:
>
> How do you reference an environmental variable (which
>happens to be a pathname) inside a nawk script? eg:
>
>setenv CMCARC=/a/b/c
>
>The awk script could be like this:
>
>BEGIN { aa = $CMCARC
>        etc...

My email bounced -so here..
   use the ARGV variables and include
   environment variable on the command line to invoke
   nawk
   ie:
   nawk -f foobar $CMCARC  ....

   in this case ARGV[0] is awk, ARGV[1] is $CMARC.
	since command lines expand, you should get what you want.

	ie your first awk line should look like
BEGIN { aa = ARGV[1]
 ....

 Dont forget to reset ARGV [2] =""
   or you'll end up interpreting $CMCARC as a file to be read in.

Richard

Re: environmental vars in nawk

#1803

Author: Richard Karasik
Date: Tue, 20 Nov 1990 02:20

3 lines
494 bytes

Whoops that should have been set argv[1] =""
Richard

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