##Polygot, 95

Works in
<ul>
<li>Tcl</li>
<li>Perl</li>
<li>Bash</li>
<li>Brainfuck</li>
<li>Ruby</li>
<li>Coffescript</li>
<li>C - if no <code>main()</code> is needed. Thanks to <a href="http://codegolf.stackexchange.com/users/3544/ugoren">ugoren</a></li>
<li>Probably more.</li>
</ul>

    #undef X;A!"$%&'()*+-[,.]/0123456789:<=>?@BCDEFGHIJKLMNOPQRSTUVWYZ\^_`abcghijklmopqrstvwxyz{|}~

Does nothing.