[ftaghn]

People all too often forget that there is often a lot of extra documentation hidden in /usr/share/doc/ when you install -doc packages, at least on deb systems, and not just info and manpages. For example, the bash manual you cite is in /usr/share/doc/bash/bashref.pdf along with its html version as bashref.html. There is also an /example/ folder filled with commented programs and functions to serve as reference. And a README that suggests looking for "Advanced Bash-Scripting Guide" which is a massive online book filled with all sorts of esoteric knowledge. You can also find things like the release changelogs and one that details incompatibilities from previous versions.

While there are exceptions, most packages have useful goodies in there to check first before one has to think about looking things up online.

[dredmorbius]

On Debian, install the dwww package (<https://packages.debian.org/bookworm/dwww>), and point your browser at <https://localhost/dwww/>.

What you'll find is both a set of pages & hierarchy of documentation as well as search (via swish++) through that space. And yes, there is an absolute trove of information available:

- Manpages

- Info pages

- Default package information

- Supplementary package documents, if installed

- HOWTOs from the Linux Documentation Project.

- Debian-specific documentation (installation, administration, security, policy, and other manuals)

- RFCs (divided into several groups, for manageability / relevance)

- Resources such as the Linux Gazette

There's also a commandline utility, dwww, which will invoke your browser of choice. Point that at a terminal-based browser (w3m, lynx, links, elinks, etc.) and you can quickly scan through docs from your terminal.