You can get sgml-tools-1.0.x.tar.gz from:
The file sgml-tools-1.0.x.tar.gz contains everything that you
need to write SGML documents and convert them to groff, LaTeX,
PostScript, HTML, GNU info, LyX, and RTF. In addition to this
package, you will need some additional tools for generating formatted
output.
groff. You need version 1.08 or greater. You can get
this from
ftp://prep.ai.mit.edu/pub/gnu. There is a Linux binary
version at
ftp://sunsite.unc.edu/pub/Linux/utils/text as well. You
will need groff to produce plain text from your SGML documents.
nroff will not work!
You can find the version of your groff from groff -v < /dev/null.
sunsite.unc.edu). Of course, you only need TeX/LaTeX
if you want to format your SGML documents with LaTeX. So, installing TeX/LaTeX
is optional.
flex. lex will probably not work. You can get flex from
ftp://prep.ai.mit.edu/pub/gnu.
gawk and the GNU info tools, for formatting and viewing
info files. These are also available on
ftp://prep.ai.mit.edu/pub/gnu, or on
ftp://sunsite.unc.edu/pub/Linux/utils/text
(for gawk) and
ftp://sunsite.unc.edu/pub/Linux/system/Manual-pagers
(for GNU info tools). awk will not work.
The steps needed to install and configure the SGML-Tools are:
sgml-tools-1.0.x.tar.gz somewhere.
This will create the directory sgml-tools-1.0.x. It doesn't matter
where you unpack this file; just don't move things around within the
sgml-tools-1.0.x directory.
INSTALL file - it has detailed installation instructions.
Follow them. If all went well, you should be ready to use the system
immediately once you have done so.