I am searching for a particular LaTeX input file, and have not been able to find it in the repositories.
I am fairly certain that the repositories can be searched by contents because the following command (searching for the LaTeX input file amsmath.sty) is successful:
# apt-cache search amsmath
texlive-latex-base - TeX Live: Basic LaTeX packages
texlive-doc-it - TeX Live: Italian documentation
texlive-latex-extra - TeX Live: LaTeX supplementary packages
texlive-math-extra - TeX Live: Advanced math typesetting
The particular TeX input file I am searching for returns no results (apt-cache search breqn). Can I assume that breqn.sty is not present in any packages in the repositories, and thus seek it out through other means (e.g., CTAN)? Or might there be another way to search through package contents?
