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Top Forums UNIX for Dummies Questions & Answers What is /dev/mapper used for? Post 302846631 by wisecracker on Sunday 25th of August 2013 05:48:34 AM
Old 08-25-2013
Google is your friend here, and there is a lot about it...

A starter:-

Device mapper - Wikipedia, the free encyclopedia
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mhpath(1mh)															       mhpath(1mh)

Name
       mhpath - print full pathnames of MH messages and folders

Syntax
       mhpath [ +foldername ] [ msgs ] [ -help ]

Description
       Use the command to display the full pathname of the specified folder.  If you do not specify a folder, displays the pathname of the current
       folder.

       If you specify a message with its message number, displays the pathname of the specified message.  You can also specify a  number  of  mes-
       sages,  or  a range of messages.  If the top of the range that you specify is greater than the last message in the folder, displays as much
       of the specified range as possible.

       Additionally can take a keyword or a sequence name.  The following keywords are acceptable:

       first	 The first message in the folder.

       last	 The last message in the folder.

       new	 The message after the last message in the folder.  You cannot use new as part of a message range.

       cur	 The current message in the folder.

       prev	 The message before the current message.

       next	 The message after the current message.

       all	 All of the messages in the folder.

Options
       -help	 Prints a list of the valid options to this command.

Examples
       In the following example, displays message 3 in the folder
       % mhpath +inbox 3
       /r/phyl/Mail/inbox

       The following example displays the pathname of messages 2 to 5 in the current folder:
       % mhpath 2-5
       /r/phyl/Mail/inbox/2
       /r/phyl/Mail/inbox/3
       /r/phyl/Mail/inbox/4
       /r/phyl/Mail/inbox/5

Profile Components
       Path:   To determine your Mail directory

Files
       The user profile.

See Also
       folder(1mh)

																       mhpath(1mh)
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