1 | #!/bin/sh |
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2 | # Get modification time of a file or directory and pretty-print it. |
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3 | # Copyright (C) 1995, 1996, 1997, 2003 Free Software Foundation, Inc. |
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4 | # written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, June 1995 |
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5 | # |
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6 | # This program is free software; you can redistribute it and/or modify |
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7 | # it under the terms of the GNU General Public License as published by |
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8 | # the Free Software Foundation; either version 2, or (at your option) |
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9 | # any later version. |
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10 | # |
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11 | # This program is distributed in the hope that it will be useful, |
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12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 | # GNU General Public License for more details. |
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15 | # |
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16 | # You should have received a copy of the GNU General Public License |
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17 | # along with this program; if not, write to the Free Software Foundation, |
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18 | # Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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19 | |
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20 | # As a special exception to the GNU General Public License, if you |
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21 | # distribute this file as part of a program that contains a |
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22 | # configuration script generated by Autoconf, you may include it under |
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23 | # the same distribution terms that you use for the rest of that program. |
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24 | |
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25 | # Prevent date giving response in another language. |
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26 | LANG=C |
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27 | export LANG |
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28 | LC_ALL=C |
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29 | export LC_ALL |
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30 | LC_TIME=C |
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31 | export LC_TIME |
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32 | |
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33 | save_arg1="$1" |
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34 | |
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35 | # Find out how to get the extended ls output of a file or directory. |
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36 | if ls -L /dev/null 1>/dev/null 2>&1; then |
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37 | ls_command='ls -L -l -d' |
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38 | else |
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39 | ls_command='ls -l -d' |
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40 | fi |
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41 | |
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42 | # A `ls -l' line looks as follows on OS/2. |
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43 | # drwxrwx--- 0 Aug 11 2001 foo |
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44 | # This differs from Unix, which adds ownership information. |
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45 | # drwxrwx--- 2 root root 4096 Aug 11 2001 foo |
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46 | # |
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47 | # To find the date, we split the line on spaces and iterate on words |
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48 | # until we find a month. This cannot work with files whose owner is a |
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49 | # user named `Jan', or `Feb', etc. However, it's unlikely that `/' |
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50 | # will be owned by a user whose name is a month. So we first look at |
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51 | # the extended ls output of the root directory to decide how many |
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52 | # words should be skipped to get the date. |
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53 | |
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54 | # On HPUX /bin/sh, "set" interprets "-rw-r--r--" as options, so the "x" below. |
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55 | set - x`$ls_command /` |
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56 | |
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57 | # Find which argument is the month. |
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58 | month= |
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59 | command= |
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60 | until test $month |
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61 | do |
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62 | shift |
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63 | # Add another shift to the command. |
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64 | command="$command shift;" |
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65 | case $1 in |
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66 | Jan) month=January; nummonth=1;; |
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67 | Feb) month=February; nummonth=2;; |
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68 | Mar) month=March; nummonth=3;; |
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69 | Apr) month=April; nummonth=4;; |
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70 | May) month=May; nummonth=5;; |
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71 | Jun) month=June; nummonth=6;; |
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72 | Jul) month=July; nummonth=7;; |
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73 | Aug) month=August; nummonth=8;; |
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74 | Sep) month=September; nummonth=9;; |
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75 | Oct) month=October; nummonth=10;; |
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76 | Nov) month=November; nummonth=11;; |
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77 | Dec) month=December; nummonth=12;; |
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78 | esac |
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79 | done |
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80 | |
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81 | # Get the extended ls output of the file or directory. |
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82 | set - x`eval "$ls_command \"\$save_arg1\""` |
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83 | |
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84 | # Remove all preceding arguments |
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85 | eval $command |
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86 | |
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87 | # Get the month. Next argument is day, followed by the year or time. |
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88 | case $1 in |
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89 | Jan) month=January; nummonth=1;; |
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90 | Feb) month=February; nummonth=2;; |
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91 | Mar) month=March; nummonth=3;; |
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92 | Apr) month=April; nummonth=4;; |
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93 | May) month=May; nummonth=5;; |
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94 | Jun) month=June; nummonth=6;; |
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95 | Jul) month=July; nummonth=7;; |
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96 | Aug) month=August; nummonth=8;; |
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97 | Sep) month=September; nummonth=9;; |
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98 | Oct) month=October; nummonth=10;; |
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99 | Nov) month=November; nummonth=11;; |
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100 | Dec) month=December; nummonth=12;; |
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101 | esac |
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102 | |
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103 | day=$2 |
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104 | |
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105 | # Here we have to deal with the problem that the ls output gives either |
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106 | # the time of day or the year. |
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107 | case $3 in |
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108 | *:*) set `date`; eval year=\$$# |
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109 | case $2 in |
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110 | Jan) nummonthtod=1;; |
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111 | Feb) nummonthtod=2;; |
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112 | Mar) nummonthtod=3;; |
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113 | Apr) nummonthtod=4;; |
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114 | May) nummonthtod=5;; |
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115 | Jun) nummonthtod=6;; |
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116 | Jul) nummonthtod=7;; |
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117 | Aug) nummonthtod=8;; |
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118 | Sep) nummonthtod=9;; |
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119 | Oct) nummonthtod=10;; |
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120 | Nov) nummonthtod=11;; |
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121 | Dec) nummonthtod=12;; |
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122 | esac |
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123 | # For the first six month of the year the time notation can also |
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124 | # be used for files modified in the last year. |
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125 | if (expr $nummonth \> $nummonthtod) > /dev/null; |
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126 | then |
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127 | year=`expr $year - 1` |
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128 | fi;; |
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129 | *) year=$3;; |
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130 | esac |
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131 | |
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132 | # The result. |
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133 | echo $day $month $year |
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