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Asked: 2015-01-30 01:48:50 +0800 CST

I need regex(7)'s manual, but man command shows regex(3)'s manual

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I understand there are many manuals (which are displayed by man command) in Ubuntu that has same names and are distinguished by a number. For example there is regex(3) and regex(7).
If I type man regex it shows regex(3)'s manual. Is there any way to tell man to show regex(7) manual?

Note 1: There is a regex(7) item in see also part of regex(3)'s manual.

Note 2: I tried man regex(7) and man "regex(7)" commands, but no success.

command-line

2 Answers

  1. Best Answer

    To access the (7) man section you can use the following command:

    MANSECT=7 man regex

    The section search order is predefined, that explains why you get regex(3) by default:

       MANSECT
          If $MANSECT is set, its value is a colon-delimited list of  sec‐
          tions  and  it  is  used  to  determine which manual sections to
          search and in what order.  The default is "1 n l 8  3  2  3posix
          3pm 3perl 5 4 9 6 7", unless overridden by the SECTION directive
          in /etc/manpath.config.

    Or you can just type:

    man 7 regex

    See man man.

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  2. You can also view all available manpages for that term:

    man -a regex

    After quitting the first manpage, it will show you some options:

    $ man -a regex
--Man-- next: regex(7) [ view (return) | skip (Ctrl-D) | quit (Ctrl-C) ]
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