Handy commands in Mac/Linux systems
Here’s a list of common commands I use in Linux. I will continue to update this list with more stuff. Checking fireball logs: [code lang=”bash” gutter=”false”] cat /var/log/appfirewall.log # You will see stuff like Jun 21 10:37:51 prakhars-MacBook-Pro Firewall[90]: postgres is listening from 0.0.0.0:5432 proto=6 Jun 21 10:38:11 prakhars-MacBook-Pro Firewall[90]: mysqld is listening from ::ffff:0.0.0.0:3306 …
Using Django using VirtualEnv on MAC. Fast forward installation.
This is a fast forward tutorial which will guide you through django installation on virtualenv. Detailed installation instructions using source codes can be found on respective package’s official site. Pre- Requirements: Make sure you have easy_install on MAC Install pip using easy_install pip 1) Installing Virtualenv: Run following lines in terminal: [code lang=”bash” gutter=”false”] pip …
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Display file permissions as octal number in ls command
Normally, in *nix systems like Linux, mac the file permissions are displayed as symbolic notations. So when doing a ls -l in a directory you’ll see drwxr-xr-x+ like symbolic permissions next to a directory. This is equivalent to 755 in octal permissions. I find octal permissions easier to grasp and understand. Unfortunately, there is no …
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MAC View file transfer speeds while copying
Often while copying large files from external hard disks, you want to see the transfer rates. MAC natively doesn’t show the transfer speed. However there’s a workaround: 1) open Terminal and write: [code lang=”bash” light=”true”] while true ; do iostat -w 2 ; done [/code] This will show real-time data transfer speed of all mounted …
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Interesting Python questions
See if you are able to answer these python questions: [code lang=”python”] lams = [] for i in range(10): lams.append(lambda:i) print [f() for f in lams] [/code]
HTML encode text in javascript simple shortcut
Recently, I wanted to obfuscate HTML text for some reasons. I found this link http://www.voormedia.com/en/tools/html-obfuscate-scrambler.php for scrambling text. My HTML document was: [code lang=”html”] <div id=”pictures”> <h2>Exterior</h2> <a class=”hyperlinks” href=”link”> link1 inside Exterior</a> <a class=”hyperlinks” href=”link”> link2 inside Exterior</a> <a class=”hyperlinks” href=”link”> link3 inside Exterior</a> <h2>Interior</h2> <a class=”hyperlinks” href=”link”> link1 inside Interior</a> <a class=”hyperlinks” href=”link”> …
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Changing Orientation in Iphone simulator from Portrait to Landscape
While writing my app for iOS 4 in XCode 4, I faced this situation of changing orientations from Portrait to landscape and vice-versa. This initially appeared like cake-walk to me, something which could be done with a flip of a button. Obviously I was wrong! I tried referring to http://stackoverflow.com/questions/475553/how-can-i-test-landscape-view-using-the-iphone-simulator but this thread landed me nowhere, …
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About
I am just like any other homo sapien living merrily on earth. Born genetically unmodified. I love playing with children and like messing around with all things tech. Apart from that I am a big time fan of Kiefer Sutherland and hope to meet him someday.
Hello world!
Hi friends! Thanks for landing here. The world is nice place. I just endeavor to keep it that way. Email me at hiprakhar@gmail.com