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- .\" This file is automatically generated. Do not edit!
- .SC SHOW 1
- .NA
- show \- show (list) messages
- .SY
- show
- \%[+folder] \%[msgs]
- \%[\-draft]
- \%[\-header] \%[\-noheader]
- \%[\-showproc\ program] \%[\-noshowproc]
- \%[switches\ for\ \fIshowproc\fR]
- \%[\-help]
- .DE
- \fIShow\fR lists each of the specified messages to the standard
- output (typically, the terminal).
- Typically, the messages are listed exactly
- as they are, with no reformatting.
- A program named by the \fIshowproc\fR profile component is
- invoked to do the listing, and any switches not recognized by
- \fIshow\fR are passed along to that program.
- The default program is known as \fImore\fR\0(1).
- To override the default and the \fIshowproc\fR profile component,
- use the `\-showproc\ program' switch.
- For example, `\-show\ pr' will cause the \fIpr\fR\0(1) program to list the
- messages.
- The \fIMH\fR command \fImhl\fR can be used as a \fIshowproc\fR
- to show messages in a more uniform format.
- Normally, this program is specified as the \fIshowproc\fR is the user's
- \&.mh\(ruprofile.
- See \fImhl\fR\0(1) for the details.
- If the `\-noshowproc' option is specified,
- `/bin/cat' is used instead of \fIshowproc\fR.
-
- The `\-header' switch tells \fIshow\fR to display a one\-line
- description of the message being shown.
- This description includes the folder and the message number.
-
- If no `msgs' are specified, the current message is used.
- If more than one message is specified,
- \fImore\fR will prompt for a <RETURN> prior to listing each message.
- \fImore\fR will list each message, a page at a time.
- When the end of
- page is reached, \fImore\fR will ring the bell and wait for a <SPACE>
- or <RETURN>.
- If a <RETURN> is entered, \fImore\fR will print the next line,
- whereas <SPACE> will print the next screenful.
- To exit \fImore\fR, type \*(lqq\*(rq.
-
- If the standard output is not a terminal, no queries are made,
- and each file is listed with a one\-line header and two lines of
- separation.
-
- \*(lqshow \-draft\*(rq will list the file <mh\-dir>/draft if it
- exists.
-
- If the profile entry \*(lqUnseen\-Sequence\*(rq is present and non\-empty,
- then \fIshow\fR will remove each of the messages shown from each
- sequence named by the profile entry.
- This is similar to the \*(lqPrevious\-Sequence\*(rq profile entry supported
- by all \fIMH\fR commands which take `msgs' or `msg' arguments.
- .Fi
- ^$HOME/\&.mh\(ruprofile~^The user profile
- .Pr
- ^Path:~^To determine the user's MH directory
- .Ps
- ^Current\-Folder:~^To find the default current folder
- .Ps
- ^Unseen\-Sequence:~^To name sequences denoting unseen messages
- .Ps
- ^showproc:~^Program to show messages
- .Sa
- mhl(1), more(1), next(1), pick(1), prev(1), scan(1)
- .De
- `+folder' defaults to the current folder
- .Ds
- `msgs' defaults to cur
- .Ds
- `\-format'
- .Ds
- `\-header'
- .Co
- If a folder is given, it will become the current folder.
- The last message shown will become the current message.
- .Bu
- The `\-header' switch doesn't work when `msgs' expands to more than
- one message.
- If the \fIshowproc\fR is \fImhl\fR,
- then is problem can be circumvented by referencing
- the \*(lqmessagename\*(rq field in the \fImhl\fR format file.
-
- \fIShow\fR updates the user's context before showing the message.
- Hence if \fIshow\fR will mark messages as seen prior to the user
- actually seeing them.
- This is generally not a problem,
- unless the user relies on the \*(lqunseen\*(rq messages mechanism,
- and interrupts \fIshow\fR while it is showing \*(lqunseen\*(rq messages.
-
- If \fIshowproc\fR is \fImhl\fR,
- then \fIshow\fR uses a built\-in \fImhl\fR:
- it does not actually run the \fImhl\fR program.
- Hence, if you define your own \fIshowproc\fR,
- don't call it \fImhl\fR since \fIshow\fR won't run it.
-
- If \fImore\fR\0(1) is your showproc (the default),
- then avoid running \fIshow\fR in the background
- with only its standard output piped to another process, as in
-
- .ti +.5i
- show | imprint &
-
- Due to a bug in \fImore\fR,
- show will go into a \*(lqtty input\*(rq state.
- To avoid this problem,
- re\-direct \fIshow\fR's diagnostic output as well.
- For users of \fIcsh\fR:
-
- .ti +.5i
- show |& imprint &
-
- For users of \fIsh\fR:
-
- .ti +.5i
- show 2>&1 | imprint &
- .En
-