Cool Unix Commands

ls -1 | head -10 |xargs -i cp {} ./inputs Read more here

Useful OSX links

• Encrypt Folder: I was looking for a way to encrypt a specific folder on mac. Turns out this is quite simple to do - http://www.mactrast.com/2012/07/how-to-password-protect-files-or-folders-on-your-mac
• Quick Steps:
  
  1. Fire up Disk Utility
  2. From the File menu, select New, and then select Disk Image from Folder…
  3. Select which folder you would like to protect. choose a folder to protect
  4. Choose the “AES-128″ encryption option (or 256-bit for extra security), and press Save
  5. Enter your desired new password twice.

Useful Shortcuts for VLC and Youtube

VLC Player (osx shortcuts)

Description	Shortcut
Increase Playback Speed	Cmd+=
Reduce Playback Speed	Cmd+-
Jump ahead	Opt+Cmd+RightArrow
Jump back	Opt+Cmd+LeftArrow
Jump to time	Cmd+J

Youtube (osx shortcuts)

Description	Shortcut
Increase Playback Speed	Sh + >
Reduce Playback Speed	Sh + <
Jump ahead (10 frames)	Cmd + RightArrow
Jump back (10 frames)	Cmd + LeftArrow
Jump ahead (5 frames)	RightArrow
Jump back (5 frames)	LeftArrow

Python related commands

A command to find the current PYTHONPATH - cat ~/.bash_profile | grep PYTHONPATH

Preparing a review response

I found this useful link describing how to format a review response.

http://enl.usc.edu/~ramesh/writings/responding_to_reviewers.html

Mapbox and Openlayers example

Just a working example of MapBox and Openlayers. Also interesting is the concept of bl.ocks.org (personal note to check this out later again)

http://bl.ocks.org/tmcw/5492123

Setting up XAMPP for Mac OSX

I had run into a 403 access forbidden error when I tried to set up a webserver on my mac using XAMPP. Here is the fix.


http://jonathannicol.com/blog/2012/03/11/configuring-virtualhosts-in-xampp-on-mac/

LaTeX in emails and blog

I just installed the tool LatexIt for Thunderbird email client. Now its easy to write out equations directly into my email.

Next, I am wondering if this is possible to do in case of blogs as well.

Convergence

I keep coming across the terms pointwise and uniform convergence recently in papers. Since I don't remember ever learning about them in classes, I decided to do a little digging and figure them out.

Pointwise convergence depends upon the value of x for which the sequence of functions converges as n tends to infinity.

Uniform convergence is a stricter case when the convergence should happen irrespective of the value of x.

Update:
This lecture nails it, makes it quite simple:

Starting a git repo

Here are some steps to go through when starting a git repo.

1. Enter the directory which is going to be the repository
2. Create a .gitignore file - Some good rules #change this
3. git init
4. git add . #link to blog on add
5. git commit -m 'Initial commit'6. Now on the git hosting site (e.g. Bitbucket ) create the repo, I prefer lowercase names without spaces.7. git push -u origin master #link to blog on git push
Now to clone:git clone "paths-to-repo"

Cmake tips

make -j 4

Command	Description	Source
For multicore compilation using cmake

TexStudio Shortcuts

Command	Description	Source
F1	Build View

Unix Command Line Commands

Copy files to folder, filenames in text file

Command	Description	Source
ls | wc -l	Count of files in current directory
top<\td>	To check out useful information about running processes
cat list.txt | xargs -J % cp % new_folder

LaTeX - Useful Links

Math Examples - http://www.artofproblemsolving.com/Wiki/index.php/LaTeX:Commands

LaTeX - Useful Packages

cleverref

Pydev project and git repo - ignoring local configurations

The local configuration settings for a pydev project are stored in a hidden file .pydevproject. If we push this file to the repository then every other other remote repository that pulls the repo will get the version of this file that is specific for a particular local machine. In order to avoid this, it is a good idea to add this file to the .gitignore file in the root folder of the git repo.

Typically, here is a list of standard files to add to .gitignore.

 .pydevproject  
 .pyc  

Code formattd using - Code Formatter

Eclipse Pydev Shortcuts

Command	Description	Source
Cmd + Shift + G	Find references.
Ctrl + H	Find files or text in files
Ctrl+Alt+Enter	To bring up options for interactive mode. Choose console for currently active editor.	Link

Git Commands

Command	Description	Source
find . -name "*.pyc" -exec git rm -f {} \;	Stop tracking all .pyc files from repo.	http://yuji.wordpress.com/2010/10/29/git-remove-all-pyc/

Mac OSX shortcuts.

Mac OSX shortcuts.


Cmd+Shift+A/U/D

Shortcut	Job
Cmd+Shift+G	Display window to type path when opening files.
Cmd+Shift+Arrows	Cycle through tabs in the mac terminal.
Cmd+Alt+Esc	Show Force Quit Applications Window
Cmd+Shift+A/U/D	Move any finder window to Application/Utilities/Desktop
Cmd+Opt+M	Minimize all windows