Category: Linux

Link: How to Enable TRIM For SSD in Ubuntu

If you are using a Solid State Drive (SSD), you should know that you shouldn’t run any defragmentation or free space consolidation software on it. So how do you clean up your SSD and free up the empty space? TRIM is the command we use to inform the OS to do the cleaning job. Windows 8 comes with the “Optimize Drive” feature that can run the TRIM command regularly. What about Ubuntu? How can you enable TRIM for SSD in Ubuntu?

Full article here:
How to Enable TRIM For SSD in Ubuntu (Make Tech Easier)

Link: A Raspberry Pi File and Print Server

I was recently looking into the options to buy a living room “home server” to centralize certain services like file and print server, media server, etc.

It didn’t take me long to realize that for less money I could get a whole legion of small microcomputers that do the same work better and more securely; and use less energy while doing so.

This was of course the pretext to buy my first Raspberry Pi. A few more should follow… This article starts a little series explaining what I did and how I did it. Today, I will look at the first and simplest type of server …

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A Raspberry Pi File and Print Server (Sascha’s Blog)

Link: Raspberry Pi NAS

Why would you want to run a file server off a Raspberry Pi? Maybe you want a small server that is always on and low voltage. If you need something that you can send and recieve files to and from than this might be your solution. The Raspberry Pi is low voltage running at just 5.0V ±5%. This means that your server will end up costing you around $5 a year.

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Raspberry Pi NAS (CMDann.ca)

Link and video: Add Voice Control to Your Home with LightwaveRF and a Raspberry Pi

Voice control of our home electronics was promised long ago, but it’s still one of those things that most of us don’t have. If you want to add little voice control to your home on the cheap, blogger Chipos81 shows off how to do it with a Raspberry Pi.

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Add Voice Control to Your Home with LightwaveRF and a Raspberry Pi (Lifehacker)

Link: Remotely control your Raspberry Pi

Take control of your Raspberry Pi from your smartphone, tablet or PC, from anywhere in the world

People are starting to do all kinds of things with their Raspberry Pi, like having it open and close a garage door, automate lighting and heating in the home, and so on. Even if you don’t yet have a project like this, this tutorial will still serve as a useful introduction to writing web applications with Python.

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Remotely control your Raspberry Pi (Linux User & Developer)

Link: Change the sudo Password Timeout in Ubuntu

In Ubuntu (and any other Ubuntu-based distro), when you use a “sudo” command, the system will prompt you for your password. After the first “sudo” command, the system will remember your password for the next 15 minutes so you don’t have to enter any more password for subsequent “sudo” command. If, however, you feel that the 15 minutes is a bit too long/short, here is how you can change it.

Full article here:
Change the sudo Password Timeout in Ubuntu (Make Tech Easier)

Link: Raspberry Pi – Driving a Relay using GPIO

There’s something exciting about crossing the boundary between the abstract world of software and the physical ‘real world’, and a relay driven from a GPIO pin seemed like a good example of this. Although a simple project, I still learned some new things about the Raspberry Pi while doing it.

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Link: Raspberry Pi – Driving a Relay using GPIO (SusaNET)

Related artcle:
Tutorial: How to use your Raspberry Pi like an Arduino (Limina.Log)

Link: How To Use Bash History to Improve Your Command-Line Productivity

Whether you’re new to the Linux command-line or you’re a seasoned veteran, these tricks will help turn your text-based meanderings into full-blown marathons. Save time, speed up your productivity, and enhance your Linux-Fu, all at once!

How To Use Bash History to Improve Your Command-Line Productivity (How-To Geek)

Link: How to Emulate Google Chromecast on Windows, Mac and Linux Desktop

Google’s latest hardware offering, Chromecast was an instant hit as it promised a better way of beaming/ controlling  multimedia content from your mobile phone on to a TV than the current choices we have right now. Now when a popular company like Google is trying to solve an age old problem that haunted Android, with a less expensive ($35) hardware, we should expect it to run out of stock. That is what exactly happened to Chromecast as it ran out of stock on all popular online stores including Google’s own Play store. Now if you have already pre-ordered a Chromecast or is in queue, here is something for you impatient folks, ready to play with few command lines.

Github user (dz0ny) has developed a Python package called Leapcast that can emulate the Chromecast hardware in Chromium environment running on your Mac, Windows and Linux. In order to achieve this hack on your computer all you have to do is carefully follow the steps below.

Full article here:
How to Emulate Google Chromecast on Windows, Mac and Linux Desktop (Compixels)