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I learn Linux partly by reading man documentation.

I often find relevant man pages using apropos or man <command>.

However, I've come across many "hidden" gems, like man credentials and man unix that I didn't knew existed before I saw other man pages refer to them.

Is there a way to list all man pages available on the system, so that I can get a complete overview of what's available?

I tried looking into man --all --regex <regex>, but it seems that man opens the matching man pages instead of listing them.

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    Try apropos -r .* | less. Is that what you are looking for? If you want to limit to man levels, you can use apropos -s <level> -r .* (for instance apropos -s 3 -r .*). – nobody Jun 17 '20 at 5:23
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Try this,

man -k .
  • -k Equivalent to apropos.
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  • Thank you. Here . matches any char? – Shuzheng Jun 17 '20 at 4:59
  • Isn't -k (apropos) implied by default? – Shuzheng Jun 17 '20 at 5:00
  • Yes, . matched any char – Siva Jun 17 '20 at 5:05
  • What do you mean by "builtins"? On my system man . and man -k . produces identical output (Debian 9) – Shuzheng Jun 17 '20 at 5:06

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