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1 .\"Shamelessly copied from zmore.1 by Philippe Troin <phil@fifi.org>
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2 .\"for Debian GNU/Linux
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3 .TH BZMORE 1
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4 .SH NAME
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5 bzmore, bzless \- file perusal filter for crt viewing of bzip2 compressed text
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6 .SH SYNOPSIS
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7 .B bzmore
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8 [ name ... ]
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9 .br
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10 .B bzless
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11 [ name ... ]
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12 .SH NOTE
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13 In the following description,
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14 .I bzless
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15 and
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16 .I less
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17 can be used interchangeably with
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18 .I bzmore
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19 and
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20 .I more.
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21 .SH DESCRIPTION
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22 .I Bzmore
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23 is a filter which allows examination of compressed or plain text files
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24 one screenful at a time on a soft-copy terminal.
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25 .I bzmore
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26 works on files compressed with
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27 .I bzip2
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28 and also on uncompressed files.
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29 If a file does not exist,
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30 .I bzmore
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31 looks for a file of the same name with the addition of a .bz2 suffix.
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32 .PP
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33 .I Bzmore
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34 normally pauses after each screenful, printing --More--
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35 at the bottom of the screen.
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36 If the user then types a carriage return, one more line is displayed.
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37 If the user hits a space,
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38 another screenful is displayed. Other possibilities are enumerated later.
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39 .PP
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40 .I Bzmore
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41 looks in the file
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42 .I /etc/termcap
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43 to determine terminal characteristics,
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44 and to determine the default window size.
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45 On a terminal capable of displaying 24 lines,
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46 the default window size is 22 lines.
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47 Other sequences which may be typed when
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48 .I bzmore
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49 pauses, and their effects, are as follows (\fIi\fP is an optional integer
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50 argument, defaulting to 1) :
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51 .PP
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52 .IP \fIi\|\fP<space>
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53 display
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54 .I i
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55 more lines, (or another screenful if no argument is given)
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56 .PP
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57 .IP ^D
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58 display 11 more lines (a ``scroll'').
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59 If
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60 .I i
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61 is given, then the scroll size is set to \fIi\|\fP.
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62 .PP
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63 .IP d
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64 same as ^D (control-D)
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65 .PP
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66 .IP \fIi\|\fPz
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67 same as typing a space except that \fIi\|\fP, if present, becomes the new
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68 window size. Note that the window size reverts back to the default at the
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69 end of the current file.
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70 .PP
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71 .IP \fIi\|\fPs
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72 skip \fIi\|\fP lines and print a screenful of lines
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73 .PP
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74 .IP \fIi\|\fPf
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75 skip \fIi\fP screenfuls and print a screenful of lines
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76 .PP
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77 .IP "q or Q"
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78 quit reading the current file; go on to the next (if any)
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79 .PP
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80 .IP "e or q"
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81 When the prompt --More--(Next file:
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82 .IR file )
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83 is printed, this command causes bzmore to exit.
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84 .PP
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85 .IP s
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86 When the prompt --More--(Next file:
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87 .IR file )
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88 is printed, this command causes bzmore to skip the next file and continue.
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89 .PP
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90 .IP =
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91 Display the current line number.
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92 .PP
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93 .IP \fIi\|\fP/expr
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94 search for the \fIi\|\fP-th occurrence of the regular expression \fIexpr.\fP
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95 If the pattern is not found,
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96 .I bzmore
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97 goes on to the next file (if any).
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98 Otherwise, a screenful is displayed, starting two lines before the place
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99 where the expression was found.
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100 The user's erase and kill characters may be used to edit the regular
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101 expression.
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102 Erasing back past the first column cancels the search command.
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103 .PP
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104 .IP \fIi\|\fPn
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105 search for the \fIi\|\fP-th occurrence of the last regular expression entered.
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106 .PP
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107 .IP !command
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108 invoke a shell with \fIcommand\|\fP.
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109 The character `!' in "command" are replaced with the
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110 previous shell command. The sequence "\\!" is replaced by "!".
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111 .PP
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112 .IP ":q or :Q"
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113 quit reading the current file; go on to the next (if any)
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114 (same as q or Q).
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115 .PP
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116 .IP .
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117 (dot) repeat the previous command.
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118 .PP
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119 The commands take effect immediately, i.e., it is not necessary to
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120 type a carriage return.
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121 Up to the time when the command character itself is given,
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122 the user may hit the line kill character to cancel the numerical
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123 argument being formed.
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124 In addition, the user may hit the erase character to redisplay the
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125 --More-- message.
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126 .PP
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127 At any time when output is being sent to the terminal, the user can
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128 hit the quit key (normally control\-\\).
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129 .I Bzmore
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130 will stop sending output, and will display the usual --More--
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131 prompt.
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132 The user may then enter one of the above commands in the normal manner.
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133 Unfortunately, some output is lost when this is done, due to the
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134 fact that any characters waiting in the terminal's output queue
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135 are flushed when the quit signal occurs.
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136 .PP
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137 The terminal is set to
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138 .I noecho
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139 mode by this program so that the output can be continuous.
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140 What you type will thus not show on your terminal, except for the / and !
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141 commands.
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142 .PP
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143 If the standard output is not a teletype, then
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144 .I bzmore
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145 acts just like
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146 .I bzcat,
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147 except that a header is printed before each file.
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148 .SH FILES
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149 .DT
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150 /etc/termcap Terminal data base
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151 .SH "SEE ALSO"
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152 more(1), less(1), bzip2(1), bzdiff(1), bzgrep(1)
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