gerbv -- Gerber file viewer from the gEDA toolkit<hr>
<a href="http://gerbv.gpleda.org/index.html">http://gerbv.gpleda.org/index.html</a><hr>
Gerber Viewer (gerbv) is a viewer for Gerber files. Gerber files are
generated from PCB CAD system and sent to PCB manufacturers as basis
for the manufacturing process. The standard supported by gerbv is RS-274X.

gerbv also supports drill files. The format supported are known under
names as NC-drill or Excellon. The format is a bit undefined and different
EDA-vendors implement it different.

gerbv is listed among Fedora Electronic Lab (FEL) packages.
</listing>