1 #!/bin/sh 2 # Get modification time of a file or directory and pretty-print it. 3 4 scriptversion=2004-12-08.12 5 6 # Copyright (C) 1995, 1996, 1997, 2003, 2004 Free Software Foundation, Inc. 7 # written by Ulrich Drepper <drepper (at] gnu.ai.mit.edu>, June 1995 8 # 9 # This program is free software; you can redistribute it and/or modify 10 # it under the terms of the GNU General Public License as published by 11 # the Free Software Foundation; either version 2, or (at your option) 12 # any later version. 13 # 14 # This program is distributed in the hope that it will be useful, 15 # but WITHOUT ANY WARRANTY; without even the implied warranty of 16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 # GNU General Public License for more details. 18 # 19 # You should have received a copy of the GNU General Public License 20 # along with this program; if not, write to the Free Software Foundation, 21 # Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 22 23 # As a special exception to the GNU General Public License, if you 24 # distribute this file as part of a program that contains a 25 # configuration script generated by Autoconf, you may include it under 26 # the same distribution terms that you use for the rest of that program. 27 28 # This file is maintained in Automake, please report 29 # bugs to <bug-automake (at] gnu.org> or send patches to 30 # <automake-patches (at] gnu.org>. 31 32 case $1 in 33 '') 34 echo "$0: No file. Try \`$0 --help' for more information." 1>&2 35 exit 1; 36 ;; 37 -h | --h*) 38 cat <<\EOF 39 Usage: mdate-sh [--help] [--version] FILE 40 41 Pretty-print the modification time of FILE. 42 43 Report bugs to <bug-automake (at] gnu.org>. 44 EOF 45 exit 0 46 ;; 47 -v | --v*) 48 echo "mdate-sh $scriptversion" 49 exit 0 50 ;; 51 esac 52 53 # Prevent date giving response in another language. 54 LANG=C 55 export LANG 56 LC_ALL=C 57 export LC_ALL 58 LC_TIME=C 59 export LC_TIME 60 61 save_arg1="$1" 62 63 # Find out how to get the extended ls output of a file or directory. 64 if ls -L /dev/null 1>/dev/null 2>&1; then 65 ls_command='ls -L -l -d' 66 else 67 ls_command='ls -l -d' 68 fi 69 70 # A `ls -l' line looks as follows on OS/2. 71 # drwxrwx--- 0 Aug 11 2001 foo 72 # This differs from Unix, which adds ownership information. 73 # drwxrwx--- 2 root root 4096 Aug 11 2001 foo 74 # 75 # To find the date, we split the line on spaces and iterate on words 76 # until we find a month. This cannot work with files whose owner is a 77 # user named `Jan', or `Feb', etc. However, it's unlikely that `/' 78 # will be owned by a user whose name is a month. So we first look at 79 # the extended ls output of the root directory to decide how many 80 # words should be skipped to get the date. 81 82 # On HPUX /bin/sh, "set" interprets "-rw-r--r--" as options, so the "x" below. 83 set x`ls -l -d /` 84 85 # Find which argument is the month. 86 month= 87 command= 88 until test $month 89 do 90 shift 91 # Add another shift to the command. 92 command="$command shift;" 93 case $1 in 94 Jan) month=January; nummonth=1;; 95 Feb) month=February; nummonth=2;; 96 Mar) month=March; nummonth=3;; 97 Apr) month=April; nummonth=4;; 98 May) month=May; nummonth=5;; 99 Jun) month=June; nummonth=6;; 100 Jul) month=July; nummonth=7;; 101 Aug) month=August; nummonth=8;; 102 Sep) month=September; nummonth=9;; 103 Oct) month=October; nummonth=10;; 104 Nov) month=November; nummonth=11;; 105 Dec) month=December; nummonth=12;; 106 esac 107 done 108 109 # Get the extended ls output of the file or directory. 110 set x`eval "$ls_command \"\$save_arg1\""` 111 112 # Remove all preceding arguments 113 eval $command 114 115 # Get the month. Next argument is day, followed by the year or time. 116 case $1 in 117 Jan) month=January; nummonth=1;; 118 Feb) month=February; nummonth=2;; 119 Mar) month=March; nummonth=3;; 120 Apr) month=April; nummonth=4;; 121 May) month=May; nummonth=5;; 122 Jun) month=June; nummonth=6;; 123 Jul) month=July; nummonth=7;; 124 Aug) month=August; nummonth=8;; 125 Sep) month=September; nummonth=9;; 126 Oct) month=October; nummonth=10;; 127 Nov) month=November; nummonth=11;; 128 Dec) month=December; nummonth=12;; 129 esac 130 131 day=$2 132 133 # Here we have to deal with the problem that the ls output gives either 134 # the time of day or the year. 135 case $3 in 136 *:*) set `date`; eval year=\$$# 137 case $2 in 138 Jan) nummonthtod=1;; 139 Feb) nummonthtod=2;; 140 Mar) nummonthtod=3;; 141 Apr) nummonthtod=4;; 142 May) nummonthtod=5;; 143 Jun) nummonthtod=6;; 144 Jul) nummonthtod=7;; 145 Aug) nummonthtod=8;; 146 Sep) nummonthtod=9;; 147 Oct) nummonthtod=10;; 148 Nov) nummonthtod=11;; 149 Dec) nummonthtod=12;; 150 esac 151 # For the first six month of the year the time notation can also 152 # be used for files modified in the last year. 153 if (expr $nummonth \> $nummonthtod) > /dev/null; 154 then 155 year=`expr $year - 1` 156 fi;; 157 *) year=$3;; 158 esac 159 160 # The result. 161 echo $day $month $year 162 163 # Local Variables: 164 # mode: shell-script 165 # sh-indentation: 2 166 # eval: (add-hook 'write-file-hooks 'time-stamp) 167 # time-stamp-start: "scriptversion=" 168 # time-stamp-format: "%:y-%02m-%02d.%02H" 169 # time-stamp-end: "$" 170 # End: 171
