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Where can I find the installed documentation for a library that I have installed? For example: in synaptic package manager, I have installed opencv-doc. Where can I find this documentation.

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In general each Debian package you install also will contain the resulting file location on your system after installation. Packages can be opened and viewed with the Archive Manager.

Alternatively we may also browse a package content on http://packages.ubuntu.com where all packages in the repositories should be listed. For opencv-doc this will reveal the following file list:

/usr/share/doc/opencv-doc/CMakeLists.txt
/usr/share/doc/opencv-doc/README.Debian
/usr/share/doc/opencv-doc/acircles_pattern.png
/usr/share/doc/opencv-doc/changelog.Debian.gz
[...]

This package like many other documentation files will therefore install to /usr/share/doc/<packagename>.

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In terminal you can type opencv-doc --help to get the help. You can also try in the finder located on the top left corner and can search there.

Also In Synaptics Package manager, just review the components under the Installed sub-tab. You may find your installed programs there.

UPDATE

Adding screenshots for more clear flow of actions.

installation of opencv-doc

Searching the opencv-doc in Ubuntu Software Center

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  • doesn't work opencv-doc: command not found. Description does not provide anything useful. Just a description of opencv library itself – aiao Aug 20 '13 at 12:41
  • Will you please try to reinstall it by root user ? – talktokets Aug 20 '13 at 12:45
  • @talktokets: synaptic only allows root to install something. – Takkat Aug 20 '13 at 14:18
  • @Takkat : Thanks, that I know. But here I have suggested to search for the installed package. Here one can Use Dash home or Ubuntu Software Center(where the option "Installed") is available. – talktokets Aug 21 '13 at 6:21
  • @Takkat : Thanks for suggestions. I have added images for more clarification. <br> Downvoter : Please specify the correct reason or answer when you downvote. Thanks. – talktokets Aug 21 '13 at 7:00

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