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show(1mh)							     show(1mh)

Name
       show - show (list) messages

Syntax
       show [ +folder ] [ msgs ] [ -draft ] [ -[no]header ] [ -help ] [ -show‐
       proc program ] [ -noshowproc ] [ options to ]

Description
       Use to display the contents of the current message.   You  can  specify
       alternative messages or folders by using the +folder or msgs arguments.

       If  a folder is given, it becomes the current folder.  The last message
       shown becomes the current message.

       You can specify a number of messages or a range of messages  using  the
       msgs  argument.	 If  you  specify more than one message, prompts for a
       <RETURN> prior to listing each message.

       Typically, the messages are listed exactly as they are, with no	refor‐
       matting.	  A  program  named  by	 the showproc component in the file is
       invoked to do the listing, and any options not recognized by are passed
       along to that program.  The default program is

       By default, the command use the program to list each message, a page at
       a time.	When the end of the page is reached, it waits for  a  <RETURN>
       or a space.  If you press <RETURN>, prints the next line.  If you press
       the space bar, it prints the next screen of data.  At the  end  of  the
       message,	 automatically	returns	 you to the system prompt.  Press q to
       quit before the end of the message.

       If the profile entry Unseen-Sequence: is present	 and  non-empty,  then
       will  remove each of the messages shown from the sequences named by the
       profile entry.

Options
       -draft	 Displays the draft message, or the current  message  in  your
		 folder, if you have one set up.  You cannot give a msgs argu‐
		 ment when you use this option.

       -header
       -noheader Displays a one-line header before the	message.   The	header
		 consists  of  the  name of the folder and the message number.
		 This is the default behavior.	It can be suppressed with  the
		 -noheader option.

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

       -showproc program [ options ]
       -noshowproc
		 Specifies  an	alternative  program  to  list	messages.  The
		 default is to use the program defined by the showproc:	 entry
		 in the file.  You can give options to the program at the com‐
		 mand line.  These are passed directly to by

		 If the -noshowproc option is specified, is used instead of

		 The MH command can be used as a to show messages  in  a  more
		 uniform format.  See for more details.

		 If  you  are going to use the same all the time, it is advis‐
		 able to specify it in your file.  See for more details.

       The defaults for this command are as follows:

	      +folder defaults to the current folder
	      msgs defaults to the current message
	      -header

Restrictions
       The -header option does not work when expands to more than one message.
       If the is then this problem can be circumvented by referencing the mes‐
       sagename field in the format file.

       The command updates your mail environment before showing	 the  message.
       Hence may mark messages as seen before you actually see them.  However,
       this is generally not a problem, unless you are using the  unseen  mes‐
       sages mechanism, and you interrupt while it is showing unseen messages.

       If  your	 is then uses a built-in it does not actually run the program.
       Hence, if you define your own do not call it since will not run it.

       If is your (which is the default), then avoid running in the background
       with only its standard output piped to another process.	You should re-
       direct the diagnostic output of as well.

       For example, in the following incorrect example, will go into  a	 input
       state:
       % show | print &
       For users of the correct command is:
       % show |& print &
       For users of the correct command is:
       % show 2>&1 | print &

Examples
       In  the	first example, displays the contents of message 36 in the cur‐
       rent folder:
       % show 36

       In the next example, the program is used to list the current message:
       % show -showproc pr

Profile Components
       Path:		  To determine the user's Mail directory
       Unseen-Sequence:	  To name sequences denoting unseen messages
       showproc:	  Program to show messages

Files
       The user profile.

See Also
       more(1), mhl(1mh), next(1mh), pick(1mh), prev(1mh), scan(1mh)

								     show(1mh)
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