Simon Burge <simonb@netbsd.org> typed:
:No harder than s/printf(/fprintf(outfp)/, or even "foo > outfile" :-)

% echo 'sprintf(foo, "blah");' | sed 's/printf(/fprintf(outfp)/'
sfprintf(outfp)foo, "blah");
% echo 'fprintf(stderr, "blah");' | sed 's/printf(/fprintf(outfp)/'
ffprintf(outfp)stderr, "blah");

Besides the typo in your substitution, maybe a bit harder :-)

Regards,
-- 
Geoff Wing : <gcw@pobox.com>     Work URL: http://www.primenet.com.au/
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