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1 .\" This file is automatically generated. Do not edit!
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2 .\" @(#)$Id$
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3 .SC VMH 1
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4 .NA
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5 vmh \- visual front-end to MH
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6 .SY
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7 vmh
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8 \%[\-prompt\ string]
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9 \%[\-vmhproc\ program] \%[\-novmhproc]
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10 \%[switches\ for\ \fIvmhproc\fR]
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11 \%[\-help]
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12 .DE
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13 \fIvmh\fR is a program which implements the server side of
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14 the \fIMH\fR window management protocol
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15 and uses \fIcurses\fR\0(3) routines to maintain a split\-screen interface to
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16 any program which implements the client side of the protocol.
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17 This latter program, called the \fIvmhproc\fR,
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18 is specified using the `\-vmhproc\ program' switch.
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19
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20 The upshot of all this is that one can run \fImsh\fR on a display terminal
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21 and get a nice visual interface.
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22 To do this, for example, just add the line
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23
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24 .ti +.5i
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25 mshproc: vmh
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26
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27 to your \&.mh\(ruprofile.
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28 (This takes advantage of the fact that
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29 \fImsh\fR is the default \fIvmhproc\fR for \fIvmh\fR.)
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30
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31 In order to facilitate things,
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32 if the `\-novmhproc' switch is given,
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33 and \fIvmh\fR can't run on the user's terminal,
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34 the \fIvmhproc\fR is run directly without the window management protocol.
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35
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36 After initializing the protocol,
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37 \fIvmh\fR prompts the user for a command to be given to the client.
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38 Usually, this results in output being sent to one or more windows.
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39 If a output to a window would cause it to scroll,
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40 \fIvmh\fR prompts the user for instructions,
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41 roughly permitting the capabilities of \fIless\fR or \fImore\fR
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42 (e.g., the ability to scroll backwards and forwards):
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43
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44 .nf
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45 .in +.5i
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46 .ta \w'RETURN 'u +\w'* 'u
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47 SPACE advance to the next windowful
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48 RETURN * advance to the next line
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49 y * retreat to the previous line
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50 d * advance to the next ten lines
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51 u * retreat to the previous ten lines
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52 g * go to an arbitrary line
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53 (preceed g with the line number)
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54 G * go to the end of the window
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55 (if a line number is given, this acts like `g')
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56 CTRL\-L refresh the entire screen
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57 h print a help message
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58 q abort the window
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59 .re
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60 .in -.5i
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61 .fi
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62
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63 (A `*' indicates that a numeric prefix is meaningful for this command.)
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64
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65 Note that if a command resulted in more than one window's worth of
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66 information being displayed,
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67 and you allow the command which is generating information for the window to
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68 gracefully finish
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69 (i.e., you don't use the `q' command to abort information being sent to the
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70 window),
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71 then \fIvmh\fR will give you one last change to peruse the window.
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72 This is useful for scrolling back and forth.
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73 Just type `q' when you're done.
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74
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75 To abnormally terminate \fIvmh\fR (without core dump),
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76 use <QUIT> (usually CTRL\-\\).
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77 For instance,
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78 this does the \*(lqright\*(rq thing with \fIbbc\fR and \fImsh\fR.
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79 .Fi
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80 ^$HOME/\&.mh\(ruprofile~^The user profile
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81 .Pr
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82 ^Path:~^To determine the user's MH directory
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83 .Sa
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84 msh(1)
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85 .De
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86 `\-prompt\ (vmh)\ '
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87 .Ds
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88 `\-vmhproc\ msh'
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89 .Co
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90 None
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91 .Bu
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92 The argument to the `\-prompt' switch must be interpreted as a single token
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93 by the shell that invokes \fIvmh\fR.
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94 Therefore,
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95 one must usually place the argument to this switch inside double\-quotes.
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96
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97 At present,
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98 there is no way to pass signals (e.g., interrupt, quit) to the client.
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99 However,
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100 generating QUIT when \fIvmh\fR is reading a command from the terminal is
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101 sufficient to tell the client to go away quickly.
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102
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103 Acts strangely (loses peer or botches window management protocol with peer)
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104 on random occasions.
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105 .En
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