Difference between revisions of "Apropos"

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(updated with a command that works for me)
(document documentation.man.generateCaches)
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As of NixOS 18.09, <code>apropos</code> (and likely also <code>whatis</code>) does not find anything when run. This is because the Apropos database is not generated automatically.
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By default as of NixOS 21.05, <code>apropos</code>, <code>whatis</code> and <code>man -k</code> do not find anything when run. To enable automatically building the man page index caches, you can set:
  
To generate it manually (and again to update it when new software is installed), run:
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<syntaxhighlight lang=nix>
<syntaxhighlight lang=bash>
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documentation.man.generateCaches = true;
sudo mkdir -p /var/cache/man/nixos
 
sudo mandb
 
 
</syntaxhighlight>
 
</syntaxhighlight>
 
 
For more information, see:
 
* {{issue|14472|Make NixOS module to update apropos database}}
 
* {{pull|18521|mandb: fix apropos}}
 

Revision as of 22:45, 11 June 2021

By default as of NixOS 21.05, apropos, whatis and man -k do not find anything when run. To enable automatically building the man page index caches, you can set:

documentation.man.generateCaches = true;