using /bin/sh vars in awk

[Scott "gaspo" Gasparian]

ok, I know this came up awhile ago, and I dont want to bring it
up again.  However, not enuf disk to keep articles around, and
I forgot the answer:

Question: what syntax do I have to use to get awk to take /bin/sh
          variables in a shell script?

Example:  given a /bin/sh script, and an awk command in it somewheres,
          and i need to pass the var ${fred} to awk, what should
          the following line look like?

          fred="barney"
          wilma=`cat ${file1} | awk '{if($1== fred ){print("match")}}'
                                              ^^^^
             what I need is how to expand fred_|  to get awk to 
          replace it with the string "barney"

Since this already came up, just email me the answer.  I've already
tried ${fred}, $fred, "${fred}" and a couple other combos.

thanks

--gaspo.

BTW, the example is just that, I don't need a different way to solve
the example.  just get the vars to awk.


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