Singular

LIB "latex.lib";
ring r;
ideal I = maxideal(7);
opentex("exp001");              // open latex2e document
texobj("exp001","An ideal ",I);
closetex("exp001");
tex("exp001");
==> calling latex2e for: exp001.tex 
==> 
==> This is pdfTeX, Version 3.1415926-2.4-1.40.13 (TeX Live 2012)
==>  restricted \write18 enabled.
==> entering extended mode
==> (./exp001.tex
==> LaTeX2e <2011/06/27>
==> Babel <v3.8m> and hyphenation patterns for english, dumylang, nohyphenati\
   on, lo
==> aded.
==> (/usr/share/texmf-dist/tex/latex/base/article.cls
==> Document Class: article 2007/10/19 v1.4h Standard LaTeX document class
==> (/usr/share/texmf-dist/tex/latex/base/size10.clo))
==> (/usr/share/texmf-dist/tex/latex/amsmath/amsmath.sty
==> For additional information on amsmath, use the `?' option.
==> (/usr/share/texmf-dist/tex/latex/amsmath/amstext.sty
==> (/usr/share/texmf-dist/tex/latex/amsmath/amsgen.sty))
==> (/usr/share/texmf-dist/tex/latex/amsmath/amsbsy.sty)
==> (/usr/share/texmf-dist/tex/latex/amsmath/amsopn.sty))
==> (/usr/share/texmf-dist/tex/latex/amsfonts/amssymb.sty
==> (/usr/share/texmf-dist/tex/latex/amsfonts/amsfonts.sty))
==> No file exp001.aux.
==> (/usr/share/texmf-dist/tex/latex/amsfonts/umsa.fd)
==> (/usr/share/texmf-dist/tex/latex/amsfonts/umsb.fd) [1] (./exp001.aux) )
==> Output written on exp001.dvi (1 page, 2912 bytes).
==> Transcript written on exp001.log.
system("sh","rm exp001.*");
==> 0