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[tangerine.git] / arch / common / boot / grub / docs / mdate-sh
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1 #!/bin/sh
2 # Get modification time of a file or directory and pretty-print it.
4 scriptversion=2004-12-08.12
6 # Copyright (C) 1995, 1996, 1997, 2003, 2004 Free Software Foundation, Inc.
7 # written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, June 1995
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.
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.
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.
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.
28 # This file is maintained in Automake, please report
29 # bugs to <bug-automake@gnu.org> or send patches to
30 # <automake-patches@gnu.org>.
32 case $1 in
33 '')
34 echo "$0: No file. Try \`$0 --help' for more information." 1>&2
35 exit 1;
37 -h | --h*)
38 cat <<\EOF
39 Usage: mdate-sh [--help] [--version] FILE
41 Pretty-print the modification time of FILE.
43 Report bugs to <bug-automake@gnu.org>.
44 EOF
45 exit 0
47 -v | --v*)
48 echo "mdate-sh $scriptversion"
49 exit 0
51 esac
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
61 save_arg1="$1"
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'
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
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.
82 # On HPUX /bin/sh, "set" interprets "-rw-r--r--" as options, so the "x" below.
83 set x`ls -l -d /`
85 # Find which argument is the month.
86 month=
87 command=
88 until test $month
90 shift
91 # Add another shift to the command.
92 command="$command shift;"
93 case $1 in
94 Jan) month=January; nummonth=1;;
95 Feb) month=February; nummonth=2;;
96 Mar) month=March; nummonth=3;;
97 Apr) month=April; nummonth=4;;
98 May) month=May; nummonth=5;;
99 Jun) month=June; nummonth=6;;
100 Jul) month=July; nummonth=7;;
101 Aug) month=August; nummonth=8;;
102 Sep) month=September; nummonth=9;;
103 Oct) month=October; nummonth=10;;
104 Nov) month=November; nummonth=11;;
105 Dec) month=December; nummonth=12;;
106 esac
107 done
109 # Get the extended ls output of the file or directory.
110 set x`eval "$ls_command \"\$save_arg1\""`
112 # Remove all preceding arguments
113 eval $command
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
131 day=$2
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
160 # The result.
161 echo $day $month $year
163 # Local Variables:
164 # mode: shell-script
165 # sh-indentation: 2
166 # eval: (add-hook 'write-file-hooks 'time-stamp)
167 # time-stamp-start: "scriptversion="
168 # time-stamp-format: "%:y-%02m-%02d.%02H"
169 # time-stamp-end: "$"
170 # End: