Eclipse keyboard shortcuts and Sublime Text 3 keybord shortcuts

Switching from Eclipse to Sublime Text 3?,  need some quick shortcuts to

1. Switching/Moving Lines up and down
Eclipse shortcut:  ⌘-UP to move lines up,  ⌘-DOWN to move lines down,
Sublime Text 3: CTRL-⌘-UP to move lines up, CTRL-⌘-DOWN to move lines down.

2. Deleting Entire Line your cursor is on 
Eclipse shortcut:⌘-D
Sublime Text 3: CTRL-SHIFT-K

3. Goto Line in File 
Eclipse shortcut: ⌘-L
Sublime Text 3: ⌘-P, then type a colon followed by the line number (e.g. :12 for line 12). To go to a line in another file, type the file name and then a colon and the line number.

LaTeX: LaTeX Templates for Nature, Science and for various physics journals

Here is where you can find LaTeX templates for various physics journals:

Nature: [Download here]

LaTeX templates for other Physics Journals:  [Click here ] 

Mac: Install OPEN MPI on Mac OS

Step 1 : If you haven't installed XCODE. Download and Install XCODE

Step 2 :
Install Open MPI. Download the latest stable release of Open MPI from the Open Source High Performance Computing website.

Step 3:
Open terminal and Go to the downloaded directory

Extract the downloaded archive :
tar -zxvf openmpi-1.6.5.tar.gz

Open terminal and Go to the extracted directory:
cd /path/to/extracted/openmpi-1.6.5

Run the following commands
./configure --prefix=/usr/local
make all
sudo make install

Step 4: Add OpenMPI path to your path, run the following commands export

PATH=/usr/local/openmpi/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/openmpi/lib:$LD_LIBRARY_PATH
export DYLD_LIBRARY_PATH=$LD_LIBRARY_PATH

Step 5: Compile your C/C++ program
For C:
mpicc -o myProgExe myProg.c

For C++:
mpic++ -o myProgExe myProg.cpp

Step 6: Run, where -np is the number of processor to run on.
mpirun -np 8 myProgExe

Gmail Tricks ;), Get more usage out of your Gmail address !

1. Create Filters with multiple Senders
Use the 'OR' keyword in between emails. 
Set up the filter as "email1@gmail.com OR email2@gmail.com" and continue from there.


2. The Plus Sign (+) in your Gmail address
For example you have an email address: ravi@gmail.com, then

• ravi@gmail.com = ravi+anything@gmail.com = ravi+socialmedia@gmail.com

Gmail ignores anything after the + sign.  But sends/recieves with the full email address.

So, Why do you want to use the + sign ? To manage junk and unwanted emails :)

You can use this kind of email address at some social or coupon websites to register and later manage(probably delete) all their associated emails or notifications. 

So for example, you could register at these websites with ravi+couponjunk@gmail.com . And then create a filter with ravi+couponjunk@gmail.com and you can continue from there...

So from next time when u register, which requires your email, or when you post a contact email on your website. You can create a filter and manage these emails to be automatically archived, deleted, etc...

3. The dot Sign (.) in your Gmail address
For example you have an email address: ravi@gmail.com, then

• ravi@gmail.com = r.a.v.i@gmail.com = ra.vi@gmail.com = r.av.i@gmail.com

Gmail ignores periods (.) as characters in email addresses. 

jQuery: Disable backgroud scrolling when simplemodal modal box is opened.

When using jQuery simplemodal, when the modal box is box is opened , following is one way to disable the scrolling in the background.

We change the css overflow property of the background in the onShow and onClose functions..

Example:

$("#sample").modal({  
      maxWidth:800, minHeight:800,  
       onShow: function(dialog) {  
                 $("html,body").css("overflow","hidden");  
                 //YOur remaining javascript...  
            },  
       onClose: function(dialog) {  
                 $("html,body").css("overflow","auto");  
                 $.modal.close();  
            }  
 });