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Annotation of OpenXM_contrib/gmp/mdate-sh, Revision 1.1.1.1

1.1       maekawa     1: #!/bin/sh
                      2: # Get modification time of a file or directory and pretty-print it.
                      3: # Copyright (C) 1995, 1996, 1997 Free 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 Foundation,
                     18: # Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
                     19:
                     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
                     27:
                     28: # Get the extended ls output of the file or directory.
                     29: # On HPUX /bin/sh, "set" interprets "-rw-r--r--" as options, so the "x" below.
                     30: if ls -L /dev/null 1>/dev/null 2>&1; then
                     31:   set - x`ls -L -l -d $1`
                     32: else
                     33:   set - x`ls -l -d $1`
                     34: fi
                     35: # The month is at least the fourth argument
                     36: # (3 shifts here, the next inside the loop).
                     37: shift
                     38: shift
                     39: shift
                     40:
                     41: # Find the month.  Next argument is day, followed by the year or time.
                     42: month=
                     43: until test $month
                     44: do
                     45:   shift
                     46:   case $1 in
                     47:     Jan) month=January; nummonth=1;;
                     48:     Feb) month=February; nummonth=2;;
                     49:     Mar) month=March; nummonth=3;;
                     50:     Apr) month=April; nummonth=4;;
                     51:     May) month=May; nummonth=5;;
                     52:     Jun) month=June; nummonth=6;;
                     53:     Jul) month=July; nummonth=7;;
                     54:     Aug) month=August; nummonth=8;;
                     55:     Sep) month=September; nummonth=9;;
                     56:     Oct) month=October; nummonth=10;;
                     57:     Nov) month=November; nummonth=11;;
                     58:     Dec) month=December; nummonth=12;;
                     59:   esac
                     60: done
                     61:
                     62: day=$2
                     63:
                     64: # Here we have to deal with the problem that the ls output gives either
                     65: # the time of day or the year.
                     66: case $3 in
                     67:   *:*) set `date`; eval year=\$$#
                     68:        case $2 in
                     69:         Jan) nummonthtod=1;;
                     70:         Feb) nummonthtod=2;;
                     71:         Mar) nummonthtod=3;;
                     72:         Apr) nummonthtod=4;;
                     73:         May) nummonthtod=5;;
                     74:         Jun) nummonthtod=6;;
                     75:         Jul) nummonthtod=7;;
                     76:         Aug) nummonthtod=8;;
                     77:         Sep) nummonthtod=9;;
                     78:         Oct) nummonthtod=10;;
                     79:         Nov) nummonthtod=11;;
                     80:         Dec) nummonthtod=12;;
                     81:        esac
                     82:        # For the first six month of the year the time notation can also
                     83:        # be used for files modified in the last year.
                     84:        if (expr $nummonth \> $nummonthtod) > /dev/null;
                     85:        then
                     86:         year=`expr $year - 1`
                     87:        fi;;
                     88:   *) year=$3;;
                     89: esac
                     90:
                     91: # The result.
                     92: echo $day $month $year