1 #!/bin/sh 2 # Get modification time of a file or directory and pretty-print it. 3 4 scriptversion=2005-02-07.09 5 6 # Copyright (C) 1995, 1996, 1997, 2003, 2004, 2005 Free Software 7 # Foundation, Inc. 8 # written by Ulrich Drepper <drepper (at] gnu.ai.mit.edu>, June 1995 9 # 10 # This program is free software; you can redistribute it and/or modify 11 # it under the terms of the GNU General Public License as published by 12 # the Free Software Foundation; either version 2, or (at your option) 13 # any later version. 14 # 15 # This program is distributed in the hope that it will be useful, 16 # but WITHOUT ANY WARRANTY; without even the implied warranty of 17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 # GNU General Public License for more details. 19 # 20 # You should have received a copy of the GNU General Public License 21 # along with this program; if not, write to the Free Software Foundation, 22 # Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 23 24 # As a special exception to the GNU General Public License, if you 25 # distribute this file as part of a program that contains a 26 # configuration script generated by Autoconf, you may include it under 27 # the same distribution terms that you use for the rest of that program. 28 29 # This file is maintained in Automake, please report 30 # bugs to <bug-automake (at] gnu.org> or send patches to 31 # <automake-patches (at] gnu.org>. 32 33 case $1 in 34 '') 35 echo "$0: No file. Try \`$0 --help' for more information." 1>&2 36 exit 1; 37 ;; 38 -h | --h*) 39 cat <<\EOF 40 Usage: mdate-sh [--help] [--version] FILE 41 42 Pretty-print the modification time of FILE. 43 44 Report bugs to <bug-automake (at] gnu.org>. 45 EOF 46 exit $? 47 ;; 48 -v | --v*) 49 echo "mdate-sh $scriptversion" 50 exit $? 51 ;; 52 esac 53 54 # Prevent date giving response in another language. 55 LANG=C 56 export LANG 57 LC_ALL=C 58 export LC_ALL 59 LC_TIME=C 60 export LC_TIME 61 62 save_arg1="$1" 63 64 # Find out how to get the extended ls output of a file or directory. 65 if ls -L /dev/null 1>/dev/null 2>&1; then 66 ls_command='ls -L -l -d' 67 else 68 ls_command='ls -l -d' 69 fi 70 71 # A `ls -l' line looks as follows on OS/2. 72 # drwxrwx--- 0 Aug 11 2001 foo 73 # This differs from Unix, which adds ownership information. 74 # drwxrwx--- 2 root root 4096 Aug 11 2001 foo 75 # 76 # To find the date, we split the line on spaces and iterate on words 77 # until we find a month. This cannot work with files whose owner is a 78 # user named `Jan', or `Feb', etc. However, it's unlikely that `/' 79 # will be owned by a user whose name is a month. So we first look at 80 # the extended ls output of the root directory to decide how many 81 # words should be skipped to get the date. 82 83 # On HPUX /bin/sh, "set" interprets "-rw-r--r--" as options, so the "x" below. 84 set x`ls -l -d /` 85 86 # Find which argument is the month. 87 month= 88 command= 89 until test $month 90 do 91 shift 92 # Add another shift to the command. 93 command="$command shift;" 94 case $1 in 95 Jan) month=January; nummonth=1;; 96 Feb) month=February; nummonth=2;; 97 Mar) month=March; nummonth=3;; 98 Apr) month=April; nummonth=4;; 99 May) month=May; nummonth=5;; 100 Jun) month=June; nummonth=6;; 101 Jul) month=July; nummonth=7;; 102 Aug) month=August; nummonth=8;; 103 Sep) month=September; nummonth=9;; 104 Oct) month=October; nummonth=10;; 105 Nov) month=November; nummonth=11;; 106 Dec) month=December; nummonth=12;; 107 esac 108 done 109 110 # Get the extended ls output of the file or directory. 111 set dummy x`eval "$ls_command \"\$save_arg1\""` 112 113 # Remove all preceding arguments 114 eval $command 115 116 # Because of the dummy argument above, month is in $2. 117 # 118 # On a POSIX system, we should have 119 # 120 # $# = 5 121 # $1 = file size 122 # $2 = month 123 # $3 = day 124 # $4 = year or time 125 # $5 = filename 126 # 127 # On Darwin 7.7.0 and 7.6.0, we have 128 # 129 # $# = 4 130 # $1 = day 131 # $2 = month 132 # $3 = year or time 133 # $4 = filename 134 135 # Get the month. 136 case $2 in 137 Jan) month=January; nummonth=1;; 138 Feb) month=February; nummonth=2;; 139 Mar) month=March; nummonth=3;; 140 Apr) month=April; nummonth=4;; 141 May) month=May; nummonth=5;; 142 Jun) month=June; nummonth=6;; 143 Jul) month=July; nummonth=7;; 144 Aug) month=August; nummonth=8;; 145 Sep) month=September; nummonth=9;; 146 Oct) month=October; nummonth=10;; 147 Nov) month=November; nummonth=11;; 148 Dec) month=December; nummonth=12;; 149 esac 150 151 case $3 in 152 ???*) day=$1;; 153 *) day=$3; shift;; 154 esac 155 156 # Here we have to deal with the problem that the ls output gives either 157 # the time of day or the year. 158 case $3 in 159 *:*) set `date`; eval year=\$$# 160 case $2 in 161 Jan) nummonthtod=1;; 162 Feb) nummonthtod=2;; 163 Mar) nummonthtod=3;; 164 Apr) nummonthtod=4;; 165 May) nummonthtod=5;; 166 Jun) nummonthtod=6;; 167 Jul) nummonthtod=7;; 168 Aug) nummonthtod=8;; 169 Sep) nummonthtod=9;; 170 Oct) nummonthtod=10;; 171 Nov) nummonthtod=11;; 172 Dec) nummonthtod=12;; 173 esac 174 # For the first six month of the year the time notation can also 175 # be used for files modified in the last year. 176 if (expr $nummonth \> $nummonthtod) > /dev/null; 177 then 178 year=`expr $year - 1` 179 fi;; 180 *) year=$3;; 181 esac 182 183 # The result. 184 echo $day $month $year 185 186 # Local Variables: 187 # mode: shell-script 188 # sh-indentation: 2 189 # eval: (add-hook 'write-file-hooks 'time-stamp) 190 # time-stamp-start: "scriptversion=" 191 # time-stamp-format: "%:y-%02m-%02d.%02H" 192 # time-stamp-end: "$" 193 # End: 194
Indexes created Sat Apr 11 00:22:22 UTC 2026