Documentation

man <command>

man 5 <command>

man -a <command>

Displays the manual page for the command <command>. If a page with the same name exists in more than one section, you can specify the section number or -a to display pages from all sections.

man -k <string>

Search for string <string> in the manual.

man hier

Description of the directory structure

cd /usr/share/doc; ls

cd /usr/share/examples; ls

Browse system documentation and samples. Note in particular /usr/share/doc/de/books/handbook/index.html

cd /usr/local/share/doc; ls

cd /usr/local/share/examples

Browse the package documentation and examples.