This file is indexed.

/usr/share/doc-base/glpk-language is in glpk-doc 4.57-1build3.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
Document: glpk-language
Title: Modeling Language GNU MathProg
Author: Andrew Makhorin
Abstract: This manual describes the GNU MathProg modeling language,
 which can be used to model linear programs and (mixed) integer
 programs to be solved by GLPK.  GNU MathProg is a subset of the AMPL
 modeling language.
Section: Science/Mathematics

Format: PDF
Files: /usr/share/doc/glpk-doc/gmpl.pdf