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Re: Shell confusion

On Fri, 2009-03-13 at 15:09 +0000, Dave Bolt IT Solutions wrote:
> Thanks for the explanation of the use of - in the su command.
> I checked the man pages for su, (why did you put su(1)), and found the 

Because the man pages have traditionally been organised into several
sections. The number in parentheses indicates the section of the manual
that the page is in (this is important since for e.g. there are library
calls that have the same name as commands, e.g. /usr/bin/printf is
documented in printf(1) but the printf call in the stdio library is
documented in printf(3)).

The conventional man sections are:

       1      User Commands

       2      System Calls

       3      C Library Functions

       4      Devices and Special Files

       5      File Formats and Conventions

       6      Games et. Al.

       7      Miscellanea

       8      System Administration tools and Deamons

See "man man" for more information.


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