1#!/bin/sh
2# mdate-sh - get modification time of a file and pretty-print it
3# Copyright (C) 1995 Software Foundation, Inc.
4# Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, June 1995
5#
6# This program is free software; you can redistribute it and/or modify
7# it under the terms of the GNU General Public License as published by
8# the Free Software Foundation; either version 2, or (at your option)
9# any later version.
10#
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14# GNU General Public License for more details.
15#
16# You should have received a copy of the GNU General Public License
17# along with this program; if not, write to the Free Software
18# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19
20# Prevent date giving response in another language.
21LANG=C
22export LANG
23LC_ALL=C
24export LC_ALL
25LC_TIME=C
26export LC_TIME
27
28# Get the extended ls output of the file.
29if ls -L /dev/null 1>/dev/null 2>&1; then
30  set - `ls -L -l $1`
31else
32  set - `ls -l $1`
33fi
34# The month is at least the fourth argument.
35# (3 shifts here, the next inside the loop)
36shift
37shift
38shift
39
40# Find the month.  Next argument is day, followed by the year or time.
41month=
42until test $month
43do
44  shift
45  case $1 in
46    Jan) month=January; nummonth=1;;
47    Feb) month=February; nummonth=2;;
48    Mar) month=March; nummonth=3;;
49    Apr) month=April; nummonth=4;;
50    May) month=May; nummonth=5;;
51    Jun) month=June; nummonth=6;;
52    Jul) month=July; nummonth=7;;
53    Aug) month=August; nummonth=8;;
54    Sep) month=September; nummonth=9;;
55    Oct) month=October; nummonth=10;;
56    Nov) month=November; nummonth=11;;
57    Dec) month=December; nummonth=12;;
58  esac
59done
60
61day=$2
62
63# Here we have to deal with the problem that the ls output gives either
64# the time of day or the year.
65case $3 in
66  *:*) set `date`; year=$7
67       case $2 in
68	 Jan) nummonthtod=1;;
69	 Feb) nummonthtod=2;;
70	 Mar) nummonthtod=3;;
71	 Apr) nummonthtod=4;;
72	 May) nummonthtod=5;;
73	 Jun) nummonthtod=6;;
74	 Jul) nummonthtod=7;;
75	 Aug) nummonthtod=8;;
76	 Sep) nummonthtod=9;;
77	 Oct) nummonthtod=10;;
78	 Nov) nummonthtod=11;;
79	 Dec) nummonthtod=12;;
80       esac
81       # For the first six month of the year the time notation can also
82       # be used for file modified in the last year.
83       if (expr $nummonth \> $nummonthtod) > /dev/null;
84       then
85	 year=`expr year - 1`
86       fi
87       ;;
88  *) year=$3;;
89esac
90
91# The result.
92echo $day $month $year
93