update secure.sh script

secure.sh

@@ -15,28 +15,31 @@ echo
 $NORMAL
 
 if [ -f config.php ]; then
-    $MESSAGE
-    mv config.php config.php.$$
-    cp config.php.$$ config.php
-    rm config.php.$$
     chmod 644 config.php
+    if [ $? -ne 0 ]; then
+        $MESSAGE
+        mv config.php config.php.$$
+        cp config.php.$$ config.php
+        rm -f config.php.$$
+        chmod 644 config.php
+    fi
     chmod 711 . data
     echo "*** chmod 644 config.php"
     $NORMAL
 fi
 
-IMG_DIR=`cat config.php |grep '$imgs_dir='|cut -d\' -f2`
+IMG_DIR=`cat config.php |grep '^$imgs_dir='|cut -d\' -f2`
 [ -n "$IMG_DIR" ] && [ -f imgs_htaccess ] && [ ! -f .$IMG_DIR/.htaccess ] &&
     cp imgs_htaccess .$IMG_DIR/.htaccess && rm imgs_htaccess
 
-PDS_DIR=`cat config.php |grep '$upload_dir='|cut -d\' -f2`
+PDS_DIR=`cat config.php |grep '^$upload_dir='|cut -d\' -f2`
 [ -n "$PDS_DIR" ] && [ -f pds_htaccess ] && [ ! -f $PDS_DIR/.htaccess ] &&
     cp pds_htaccess $PDS_DIR/.htaccess && rm pds_htaccess
 
 $SUCCESS
 echo ""
 echo "Your MoniWiki is now secure and cannot be configured."
-echo "If you wish to reconfigure it, execute the following command:"
+echo "If you want to config your wiki again, execute the following command:"
 echo ""
 echo -n "    "
 $MESSAGE
@@ -45,7 +48,7 @@ $NORMAL
 echo sh monisetup.sh
 $SUCCESS
 echo ""
-echo "and open 'monisetup.php' on a web browser."
+echo "and open 'monisetup.php' on your web browser."
 echo ""
 echo ""
 $NORMAL