Import changeset

1 files changed, 64 insertions, 0 deletions

diff --git a/dbug/install.sh b/dbug/install.sh
new file mode 100644
index 00000000000..7226e01b1cf
--- /dev/null
+++ b/dbug/install.sh
@@ -0,0 +1,64 @@
+
+#	WARNING -- first line intentionally left blank for sh/csh/ksh
+#	compatibility.  Do not remove it!  FNF, UniSoft Systems.
+#
+#	Usage is:
+#			install <from> <to>
+#
+#	The file <to> is replaced with the file <from>, after first
+#	moving <to> to a backup file.  The backup file name is created
+#	by prepending the filename (after removing any leading pathname
+#	components) with "OLD".
+#
+#	This script is currently not real robust in the face of signals
+#	or permission problems.  It also does not do (by intention) all
+#	the things that the System V or BSD install scripts try to do
+#
+
+if [ $# -ne 2 ]
+then
+	echo  "usage: $0 <from> <to>"
+	exit 1
+fi
+
+# Now extract the dirname and basename components.  Unfortunately, BSD does
+# not have dirname, so we do it the hard way.
+
+fd=`expr $1'/' : '\(/\)[^/]*/$' \| $1'/' : '\(.*[^/]\)//*[^/][^/]*//*$' \| .`
+ff=`basename $1`
+td=`expr $2'/' : '\(/\)[^/]*/$' \| $2'/' : '\(.*[^/]\)//*[^/][^/]*//*$' \| .`
+tf=`basename $2`
+
+# Now test to make sure that they are not the same files.
+
+if [ $fd/$ff = $td/$tf ]
+then
+	echo "install: input and output are same files"
+	exit 2
+fi
+
+# Save a copy of the "to" file as a backup.
+
+if test -f $td/$tf
+then
+	if test -f $td/OLD$tf
+	then
+		rm -f $td/OLD$tf
+	fi
+	mv $td/$tf $td/OLD$tf
+	if [ $? != 0 ]
+	then
+		exit 3
+	fi
+fi
+
+# Now do the copy and return appropriate status
+
+cp $fd/$ff $td/$tf
+if [ $? != 0 ]
+then
+	exit 4
+else
+	exit 0
+fi
+