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[automake.git] / mdate-sh
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1 #!/bin/sh
2 # mdate-sh - get modifaction 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
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.
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.
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.
20 # Prevent date giving response in another language
21 LANG=C
22 export LANG
23 LC_ALL=C
24 export LC_ALL
25 LC_TIME=C
26 export LC_TIME
28 # Get the extended ls output of the file
29 if ls -L /dev/null 1>/dev/null 2>&1; then
30 set - `ls -L -l $1`
31 else
32 set - `ls -l $1`
34 # The month is at least the fourth argument
35 # (3 shifts here, the next inside the loop)
36 shift
37 shift
38 shift
40 # Find the month. Next argument is day, followed by the year or time
41 month=
42 until test $month
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
59 done
61 day=$2
63 # Here we have to deal with the problem that the ls output gives either
64 # the time of day or the year.
65 case $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`
88 *) year=$3;;
89 esac
91 # The result.
92 echo $day $month $year