Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!att!pacbell.com!pacbell!indetech!vsi1!octel!richard
From: richard@octel.UUCP (Richard Karasik)
Newsgroups: comp.unix.shell
Subject: Re: environmental vars in nawk
Message-ID: <344@octel.UUCP>
Date: 20 Nov 90 02:10:47 GMT
References: <1990Nov15.150642.28752@cid.aes.doe.CA>
Distribution: na
Organization: Octel Communications Inc., Milpitas Ca.
Lines: 31

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