Hm, think about it this way: 

open my $FILE, '<', $name_of_file_with_functions_in_it or die ("Crap: 
+$!");

while (<$FILE>) {
   s/\bC\b/$z/g; # replace the *word* "C" with the contents of $z
   print $_;
}

close $FILE;

[download]

This prints the output to STDOUT

If you want to replace 'C' with the literal string '$z', then you just have to escape the $ in the above (\$z).

<–radiant.matrix–>
Ramblings and references
“A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort.” — Herm Albright
I haven't found a problem yet that can't be solved by a well-placed trebuchet

In reply to Re: replacing part of a string by radiantmatrix
in thread replacing part of a string by Anonymous Monk

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