usr/src/cmd/mvdir/mvdir.sh

   1 #!/sbin/sh
   2 #
   3 # CDDL HEADER START
   4 #
   5 # The contents of this file are subject to the terms of the
   6 # Common Development and Distribution License, Version 1.0 only
   7 # (the "License").  You may not use this file except in compliance
   8 # with the License.
   9 #
  10 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  11 # or http://www.opensolaris.org/os/licensing.
  12 # See the License for the specific language governing permissions
  13 # and limitations under the License.
  14 #
  15 # When distributing Covered Code, include this CDDL HEADER in each
  16 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  17 # If applicable, add the following below this CDDL HEADER, with the
  18 # fields enclosed by brackets "[]" replaced with your own identifying
  19 # information: Portions Copyright [yyyy] [name of copyright owner]
  20 #
  21 # CDDL HEADER END
  22 #
  23
  24 #
  25 # Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
  26 # Use is subject to license terms.
  27 #
  28
  29 #       Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
  30 #         All Rights Reserved
  31
  32
  33 #ident  "%Z%%M% %I%     %E% SMI"
  34
  35 if [ $# != 2 ]
  36 then
  37   echo "Usage: mvdir fromdir newname" >&2
  38   exit 2
  39 fi
  40 if [ "$1" = . ]
  41 then
  42         echo "mvdir: cannot move '.'" >&2
  43         exit 2
  44 fi
  45 f=`basename "$1"`
  46 t="$2"
  47 if [ -d "$t" ]
  48 then
  49         t="$t"/"$f"
  50 fi
  51 if [ -f "$t"  -o -d "$t" ]
  52 then
  53   echo "$t" exists >&2
  54   exit 1
  55 fi
  56 if [  ! -d "$1" ]
  57 then
  58   echo "$1" must be a directory >&2
  59   exit 1
  60 fi
  61
  62 # *** common path tests: The full path name for $1 must not
  63 # ***                    be an anchored substring of the full
  64 # ***                    path name for $2
  65
  66 here=`pwd`
  67 cd "$1"
  68 from="`pwd`/"
  69 lfrom=`expr "$from" : "$from"`
  70
  71 cd "$here"
  72 mkdir "$t"              # see if we can create the directory
  73 if [ $? != 0 ]
  74 then
  75         exit
  76 fi
  77 cd "$t"
  78 to=`pwd`
  79 cd "$here"
  80 rmdir "$t"
  81
  82 a=`expr "$to" : "$from"`
  83 if [ "$a" = "$lfrom" ]
  84 then
  85   echo arguments have common path >&2
  86   exit 1
  87 fi
  88 # ***
  89
  90 mv "$1" "$t"