Calling gawk from DOS batch script?

[pstein]

Assume I want to call gawk from DOS batch script.
I mean to gawk for windows available from here:
http://gnuwin32.sourceforge.net/packages/gawk.htm

I found samples like

@echo off & setlocal enableextensions
gawk 'BEGIN{printf"%%s\n",4/7}'
endlocal & goto :EOF

....but they don't work. I get an error:

gawk: 'BEGIN{printf%s\n,4/7}'
gawk: ^ invalid char ''' in expression

What do I have to change?

[ShadowThief]

Either have a line in your batch like

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set path=%path%;"C:\path\to\gawk.exe"

or

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start "" /b gawk 'BEGIN{printf"%%s\n",4/7}'

[ShadowThief]

Also, in Windows, you need double quotes around your gawk command.

Try

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gawk "BEGIN{printf\""%%s\n\"",4/7}"