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Batch converting images on Mac OSX

If you want to convert png images to jpeg, you should use the following:

Code: 

mkdir jpegs; sips -s format jpeg *.* --out jpgs
If the png images were generated using screen capture, you can set the default osx screen capture format to jpeg, rather than png using this command:

Code: 
defaults write com.apple.screencapture type jpg
Then restart your computer for the change to take effect. To revert back to the default png format, use “defaults write com.apple.screencapture type png”.

(Source: forums.macrumors.com)

Notes

Howto Convert Vmware Image to Virtualbox Image or Import Vmware Image into Virtualbox

Originally found at http://www.ubuntugeek.com/howto-convert-vmware-image-to-virtualbox-image.html

… to use qemu-img tool to this.QEMU disk image utility

First Install qemu qemu-img is included with qemu package using the following command

sudo apt-get install qemu

Convert a VMWare Image to VirtualBox Image

Convert VMWare image called debian.vmdk to /tmp/debian.bin

qemu-img convert debian.vmdk /tmp/debian.bin

Now use VBoxManage to get back image in native format:

VBoxManage convertdd /tmp/debian.bin debian.vdi

Solution 2

VirtualBox can run VMs created by VMware Workstation or Server for this you need to import vmdk files using the following procedure

  • Start Virtual Box
  • Goto File > Virtual Disk Manager
  • Click Add. Locate and select the copied .vmdk file. Click OK.
  • Create a New VM as usual using the added vmdk file
  • Boot the VM

If you have any other solutions let us share with us.

Notes

Apple donate Java JDK code to Oracle's OpenJDK project.

Having been led to believe that future versions of the Mac OS X native GUI’d Java programming language might just be remote possibilities, it now turns out that Apple is more than willing to release its current Java JDK code to Oracle/Sun, including, most importantly, its Aqua-based GUI code.

This means that future versions of the Java programming language will STILL be available for the Mac and that these versions will maintain a Mac-native GUI look-and-feel, and NOT fall back on a non-Mac X11 display.

Another potentially positive side-effect might be that Java releases on the Mac may not lag behind other releases quite as much as they have done, previously.

Part of Apple’s reasoning on working with Oracle’s OpenJDK might be to throw more weight behind Oracle’s patent infringement case aimed at Google’s modifications to the Java language within their Android-based Dalvik Java bytecode conversion layer.

Notes

import org.junit.runner.RunWith;
import org.junit.runners.Suite; @RunWith(Suite.class)
@Suite.SuiteClasses({ investmentTests.class, catalogTests.class, markerTests.class })
public class AllTests { // why on earth I need this class, I have no idea! }

JUnit 4 TestSuite Declaration - Joe Ocampo (AgileJoe) - Los Techies : Blogs about software and anything tech!

Joe Ocampo provides an overview of setting up an Java-annotation-based Test Suit under JUnit 4.

The most striking point appears to be the [Java compiler imposed] requirement to tie the annotations to a Java class, which itself maybe empty (it itself needs nor contains Java code). Other than this small overhead, this construct appears to perfectly well substitute previous JUnit test suite definitions.

The JUnit team themselves offer this overview:

http://junit.org/junit/javadoc/4.5/org/junit/runner/RunWith.html

Notes

sudo port install git-core +svn

Getting git-svn working on the Mac « Alec the Geek

Having installed git-core (‘sudo port install git-core’) on Mac OS X, I couldn’t for the life of me understand why ‘git svn clone’ wasn’t working (I’d used this command earlier in the day on an Ubuntu 9.10 machine at work.

I man’d ‘git-svn’ and the docs were there. ‘which’-ing git-svn gave me nothing. Turns out, via ports, that you have to add a ‘+svn’ argument to the ‘sudo port install git-core’ command.

MacPorts is doing work right now as I writethis, should have git-svn running on OS X soon, just in time to syphon of some Sourceforge and Google code projects and histories (no-404’s required here, I’m afraid).