Monthly Archives: March 2015

(Repost) Batch Change/Rename File Extensions In Windows

A good tips from Please refer to the original article.


Batch Change/Rename File Extensions In Windows

Do you want to batch rename file extensions in one simple step? Changing each file extension separately can be a pain in some cases where you have to change extensions of more than 100 files.

One of method using command line. The method as follow:

  • Select the folder which has all the files who’s extension you would like to change. As an example I have made a folder named “test”, inside this folder I have placed four images in .jpg format. To change the extension of the files inside the folder, press Shift and right-click on the folder and select Open Command Window Here.

open command window

  • You will now see a Command Window with the current folderdirectory open. Now type the following command line,
ren *.(current extension name) *.(extension you want)
  • Since I want to change the extension from .jpg to .jpg, in my case the command line would be,
ren *.jpg *.jpg

change extension

  • Now all the files inside the folder will change to the extension you want. It’s that simple.

Information and links of GIS

A geographic information system (GIS) is always amuse me. I like to explore this approach, expecially in integration with the hydrological and water resource researches. GIS can be defined as a system designed to capture, store, manipulate, analyze, manage, and present all types of spatial or geographical data.

Below some links regarding the GIS that I mark, to be my reference in the future:


Open Source GIS software

  1. QGIS

Source of GIS data (Raster, Image, etc)

  1. USGS Earthexplorer
  2. Malaysia spatial GIS data