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1 #! /usr/bin/perl -w |
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2 |
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3 # Copyright (C) 2011 Christian Arnold |
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4 # |
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5 # This program is free software: you can redistribute it and/or modify |
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6 # it under the terms of the GNU General Public License as published by |
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7 # the Free Software Foundation, either version 3 of the License, or |
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8 # (at your option) any later version. |
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9 # |
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10 # This program is distributed in the hope that it will be useful, |
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11 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 # GNU General Public License for more details. |
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14 # |
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15 # You should have received a copy of the GNU General Public License |
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16 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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17 # |
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18 # Christian Arnold <arnold@schlittermann.de> |
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19 |
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20 use 5.010; |
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21 use Perl6::Slurp; |
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22 use strict; |
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23 use warnings; |
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24 use File::Basename; |
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25 use Pod::Usage; |
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26 use Getopt::Long; |
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27 use Date::Parse qw(str2time); |
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28 use Cwd qw(realpath); |
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29 |
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30 delete @ENV{ grep /^LC_/ => keys %ENV }; |
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31 $ENV{LANG} = "C"; |
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32 $ENV{LC_ALL} = "C"; |
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33 |
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34 sub get_candidates(); |
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35 sub get_history(%); |
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36 sub report(%); |
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37 |
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38 sub devno($); |
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39 sub real_device($); |
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40 sub version($$); |
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41 |
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42 my %ERRORS = ( |
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43 OK => 0, |
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44 WARNING => 1, |
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45 CRITICAL => 2, |
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46 UNKNOWN => 3, |
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47 DEPENDENT => 4 |
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48 ); |
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49 |
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50 my $ME = basename $0; |
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51 my $VERSION = "0.1"; |
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52 my $NAME = "DUMP"; |
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53 my $NOW = time(); |
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54 |
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55 MAIN: { |
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56 Getopt::Long::Configure('bundling'); |
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57 GetOptions( |
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58 "h|help" => sub { pod2usage( -verbose => 1, -exitval => $ERRORS{OK} ) }, |
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59 "m|man" => sub { pod2usage( -verbose => 2, -exitval => $ERRORS{OK} ) }, |
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60 "V|version" => sub { version( $ME, $VERSION ); exit $ERRORS{OK}; } |
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61 ) or pod2usage( -verbose => 1, -exitval => $ERRORS{CRITICAL} ); |
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62 |
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63 my %devs = get_candidates(); |
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64 %devs = get_history(%devs); |
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65 |
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66 report(%devs); |
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67 } |
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68 |
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69 sub report(%) { |
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70 my %devs = @_; |
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71 my %rc; |
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72 |
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73 foreach my $devno ( keys %devs ) { |
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74 if ( $devs{$devno}{date} ) { |
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75 if ( ( $NOW - $devs{$devno}{date} ) > |
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76 ( $devs{$devno}{dump} * 86400 ) ) |
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77 { |
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78 $rc{ $devs{$devno}{dev} } = { rc => $ERRORS{WARNING} }; |
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79 } |
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80 } |
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81 else { |
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82 $rc{ $devs{$devno}{dev} } = { rc => $ERRORS{CRITICAL} }; |
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83 } |
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84 } |
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85 |
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86 my ( @critical, @warning ); |
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87 |
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88 foreach my $dev ( keys %rc ) { |
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89 if ( $rc{$dev}{rc} eq $ERRORS{CRITICAL} ) { |
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90 push @critical, $dev; |
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91 } |
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92 else { |
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93 push @warning, $dev; |
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94 } |
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95 } |
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96 |
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97 say "$NAME CRITICAL: @critical check dump backup" and exit $ERRORS{CRITICAL} |
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98 if (@critical); |
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99 say "$NAME WARNING: @warning check dump backup" and exit $ERRORS{WARNING} |
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100 if (@warning); |
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101 say "$NAME OK: all dump backups in limit" and exit $ERRORS{OK}; |
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102 } |
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103 |
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104 sub get_candidates() { |
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105 |
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106 my %devs; |
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107 |
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108 foreach ( grep !/^\s*#/, slurp("/etc/fstab") ) { |
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109 my ( $dev, $mp, $fstype, $options, $dump, $check ) = split; |
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110 next if not $dump; |
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111 |
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112 my $rdev = real_device($dev); |
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113 my ( $major, $minor ) = devno($rdev); |
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114 |
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115 $devs{"$major:$minor"} = { |
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116 dev => $dev, |
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117 rdev => $rdev, |
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118 dump => $dump |
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119 }; |
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120 } |
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121 |
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122 return %devs; |
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123 } |
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124 |
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125 sub get_history(%) { |
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126 |
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127 my %devs = @_; |
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128 |
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129 say "$NAME CRITICAL: Command 'dump' not found." and exit $ERRORS{CRITICAL} |
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130 if system("command -v dump >/dev/null"); |
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131 |
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132 foreach (`dump -W`) { |
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133 chomp; |
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134 /^ |
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135 (?:\s+|>\s+) |
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136 (?<dev>\S+)\s+ |
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137 \( |
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138 (?:\s+)? |
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139 (?<mp>\S+)\)\s+ |
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140 Last\s+dump:\s+ |
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141 (?:(Level\s+(?<level>\d+)|(?<level>\S+))) |
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142 (?:,\s+Date\s+)? |
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143 (?<date>.*) |
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144 /x or next; |
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145 my $rdev = real_device( $+{dev} ); |
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146 my ( $major, $minor ) = devno($rdev); |
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147 |
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148 if ( exists( $devs{"$major:$minor"} ) ) { |
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149 $devs{"$major:$minor"} = { |
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150 dev => $+{dev}, |
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151 rdev => $rdev, |
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152 mp => $+{mp}, |
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153 level => $+{level}, |
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154 dump => $devs{"$major:$minor"}{dump}, |
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155 date => str2time( $+{date} ) |
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156 }; |
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157 } |
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158 } |
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159 |
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160 return %devs; |
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161 } |
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162 |
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163 sub real_device($) { |
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164 my $dev = shift; |
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165 |
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166 if ( $dev ~~ /^(LABEL|UUID)=/ ) { |
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167 chomp( $dev = `blkid -c /dev/null -o device -t '$dev'` ); |
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168 } |
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169 |
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170 $dev = realpath($dev); |
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171 } |
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172 |
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173 sub devno($) { |
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174 my @mm = ( ( stat shift )[6] >> 8, ( stat _ )[6] & 0xff ); |
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175 return wantarray ? @mm : "$mm[0]:$mm[1]"; |
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176 } |
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177 |
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178 sub version($$) { |
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179 my $progname = shift; |
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180 my $version = shift; |
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181 |
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182 say <<_VERSION; |
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183 $progname version $version |
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184 Copyright (C) 2011 by Christian Arnold and Schlittermann internet & unix support. |
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185 |
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186 $ME comes with ABSOLUTELY NO WARRANTY. This is free software, |
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187 and you are welcome to redistribute it under certain conditions. |
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188 See the GNU General Public Licence for details. |
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189 _VERSION |
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190 } |
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191 |
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192 __END__ |
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193 |
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194 =head1 NAME |
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195 |
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196 check_dump - nagios plugin to check backup status from dump |
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197 |
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198 =head1 SYNOPSIS |
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199 |
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200 check_dump [B<-h>|B<--help>] |
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201 |
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202 check_dump [B<-m>|B<--man>] |
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203 |
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204 check_dump [B<-v>|B<--version>] |
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205 |
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206 =head1 OPTIONS |
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207 |
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208 =over |
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209 |
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210 =item B<-h>|B<--help> |
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211 |
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212 Print detailed help screen. |
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213 |
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214 =item B<-m>|B<--man> |
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215 |
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216 Print manual page. |
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217 |
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218 =item B<-V>|B<--version> |
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219 |
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220 Print version information. |
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221 |
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222 =back |
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223 |
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224 =head1 DESCRIPTION |
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225 |
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226 This nagios plugin check backup status from dump. |
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227 |
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228 =head1 VERSION |
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229 |
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230 This man page is current for version 0.1 of B<check_dump>. |
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231 |
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232 =head1 AUTHOR |
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233 |
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234 Written by Christian Arnold L<arnold@schlittermann.de> |
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235 |
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236 =head1 COPYRIGHT |
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237 |
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238 Copyright (C) 2011 by Christian Arnold and Schlittermann internet & unix support. |
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239 This is free software, and you are welcome to redistribute it under certain conditions. |
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240 See the GNU General Public Licence for details. |
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241 |
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242 =cut |