Vim is an enhanced version of the ever popular command line text editor vi. If you master the use of Vim text editor, it can be a very powerful tool in your hands, and allow you to do amazing text editing feats with just a few taps on your keyboard.
In 2007, this site had conducted a poll, and over 50% of the respondents said their favorite text editor is Vi.
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Tuesday, 27 September 2011
Saturday, 24 September 2011
Learn Linux Commands The Easy Way
There are hundreds of command line tools in Linux. For a person who has just started using Linux, learning the various commands could at times, be a chore. But not any more, if you see what this website has achieved.
Playterm is a site which hosts videos of commands / tasks executed in the Linux terminal.
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Playterm is a site which hosts videos of commands / tasks executed in the Linux terminal.
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Monday, 19 September 2011
9 Cool SSH Tricks You May Not Know
If you are running a website, even if it is a blog, chances are, you might have used SSH at least once. SSH stands for Secure SHell. When you use SSH, the communication and data transfer between the local machine and the remote machine occurs in a secure encrypted tunnel. So no one will be able to snoop on your data.
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Wednesday, 7 September 2011
Multiple Icons of the Same Application in Launchpad
One of the new features introduced by OS X Lion is the Launchpad. The launchpad gives you access to the installed applications in your Mac from a window that is reminiscent of iOS devices. In fact, it superimposes on your current desktop window, with a fancy blur effect, and a list of application icons is presented in a rectangular grid. You can even make folder in it by dragging an icon over one other. It seems an iPhone screen on steroids.
In my humble opinion, it's awful.
Anyway, one day, using a wrong gesture, the Launchpad screen was launched and I noticed that the Skype icon was presented twice. Strange, thought I. I tried to remove one of them, but they could not be deleted. I tried dragging one into the trash. It didn't work. To make the story short, I did not lose time investigating this weird Launchpad behavior: it's the kind of window I prefer not to see at all.
Some weeks after Skype informs me that an update is available: I accept to install it immediately and wait for the installer to finish. Curiosity killed the cat: I opened the Launchpad and guess what? Another brand-new Skype icon had just been added to the long row of Skype icons already present in the Launchpad window.
A quick glance confirmed what I already knew: there was just one Skype application installed in my Mac and no other link to it was present whatsoever that might have gotten Launchpad confused. I completely removed Skype from the system and reinstalled it from scratch. No way.
It was just time to act and stop the uncontrollable icon proliferation. Since every user can customize Launchpad, I thought that a good place to start was the ~/Library folder. I grep-ped every file into it looking for the "Skype" string (the icon title in the Launchpad) and a file caught my attention:
~/Library/Application Support/Dock/FABCDB4F-FBDE-42E4-A14F-80FA7476989C.db
An SQLite 3 database file (as confirmed by the file command)! It looks like the potential offender, doesn't it? I then backed up the file, removed it, logged out and logged in again. I started the Launchpad and bingo! Launchpad had just regenerated the database file and now only one Skype icon was shown in the Launchpad window.
As I said, I'm not going to use again. But at least I can rest assured that icons are gone away. Hope this can help you guys if you run into similar troubles with Launchpad.
In my humble opinion, it's awful.
Anyway, one day, using a wrong gesture, the Launchpad screen was launched and I noticed that the Skype icon was presented twice. Strange, thought I. I tried to remove one of them, but they could not be deleted. I tried dragging one into the trash. It didn't work. To make the story short, I did not lose time investigating this weird Launchpad behavior: it's the kind of window I prefer not to see at all.
Some weeks after Skype informs me that an update is available: I accept to install it immediately and wait for the installer to finish. Curiosity killed the cat: I opened the Launchpad and guess what? Another brand-new Skype icon had just been added to the long row of Skype icons already present in the Launchpad window.
A quick glance confirmed what I already knew: there was just one Skype application installed in my Mac and no other link to it was present whatsoever that might have gotten Launchpad confused. I completely removed Skype from the system and reinstalled it from scratch. No way.
It was just time to act and stop the uncontrollable icon proliferation. Since every user can customize Launchpad, I thought that a good place to start was the ~/Library folder. I grep-ped every file into it looking for the "Skype" string (the icon title in the Launchpad) and a file caught my attention:
~/Library/Application Support/Dock/FABCDB4F-FBDE-42E4-A14F-80FA7476989C.db
An SQLite 3 database file (as confirmed by the file command)! It looks like the potential offender, doesn't it? I then backed up the file, removed it, logged out and logged in again. I started the Launchpad and bingo! Launchpad had just regenerated the database file and now only one Skype icon was shown in the Launchpad window.
As I said, I'm not going to use again. But at least I can rest assured that icons are gone away. Hope this can help you guys if you run into similar troubles with Launchpad.
Monday, 5 September 2011
Linux Kernel Gets Hosted At Github
Linus Torvalds has moved the entire Linux kernel to Github. This comes in the wake of Kernel.org site (The original home of Linux kernel) getting hacked.
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