How to monitor CPU temperature in Ubuntu 14.04

CPU temperature is usually good between 40 to 50 degrees Celsius.

To monitor CPU temperature, you can use the following:

Install lm-sensors:
sudo apt-get install lm-sensors
sudo sensors detect
sudo service kmod start


How to find and install Epson CX5500 All-In-One Scanner drivers on Ubuntu

To install Epson CX5500 scanner driver in Ubuntu, they have made a utility called "iscan" / "ImageScan! for Linux".

You can download the latest version from some of Epson's global sites (Use the steps towards the end of this article to see how I navigated through their numerous archives).

Setting up a LAMP (Apache, MySQL, PHP) development environment on Ubuntu 14.04 (Trusty) LTS for local Drupal/Wordpress development

This is how I normally set up my local Drupal development machines after a fresh Ubuntu 14.04 LTS (desktop/MATE edition) install.

1. Install required packages

From Terminal, execute the following command to update the repository information and to get the system up-to-date:

sudo apt-get update
sudo apt-get upgrade

Next, install some basic necessities:

[SOLVED] How to fix breaking/cracking audio on MSI X320 or similar Poulsbo chipset based laptops on Ubuntu / Linux Mint

Though this fix was tested on an MSI X320 running Ubuntu 14.04, it should work fine on most other Poulsbo based devices. Please let me know your device make, model, if it did / did not work for you.

Just run this command in Terminal:

sudo echo "options snd-hda-intel position_fix=1" >> /etc/modprobe.d/alsa-base.conf

Then restart for the settings to apply.

[SOLVED][PHP PEAR] How to fix the error 'could not extract the package.xml file' and 'Download of "pecl/uploadprogress" succeeded, but it is not a valid package archive', when trying to install PECL uploadprogress using PHP PEAR on Ubuntu 14.04 Trusty

Setting up, upgrading and maintaining a clean and functional Drupal/PHP Development environment is an art, and quite a piece of cake for the skilled sysadmin. But the ever changing versions of OS packages and dependencies can bring up quite some unexpected challenges to a budding developer. Here is the solution to one such error that might eat your brains out.

Almost all usable versions of Drupal - 6, 7 and 8 - use PECL uploadprogress to show file upload progress.
And installing it on previous Ubuntu, PHP versions was as easy as running the following command:

How to upgrade Skype for Linux from version 4.2 to 4.3 without losing any of your old chat log / history

Skype for Linux, when updated to 4.3, from 4.2, brings up a big problem to many of the users who heavily rely on their Skype chat histories for a reason.
And since Canonical (the makers of Ubuntu) has included the update in its repositories, this problem is kind of unavoidable if you want to keep you up-to-date.
And with the now-Microsoft-owned Skype developers threatening that they would soon make the old Skype useless, you are in very much need of this fix to your existing Skype data files.

[SOLVED] How to get the Broadcom BCM4312 802.11b/g LP-PHY wireless/WLAN/WiFi adapter working on Ubuntu 14.04 Trusty Tahr or LinuxMint 17 Qiana - (Tested on a Dell Studio 1435 Laptop)

Note: I did this for a friend's Dell Studio 1435 Laptop, while installing the latest LinuxMint 17 Qiana Mate Edition. This should work on Ubuntu / LinuxMint for any machine which has a Broadcom BCM4312 wifi (802.11b/g) adapter.

You can make sure that you have the correct device mentioned here, by typing in the following command in the Terminal:

lspci | grep -i bcm4312

It should show something like this:

How to install/set up an Android Development Environment on Ubuntu (12.04 Precise / 13.04 Raring / 13.10 Saucy) / LinuxMint (13 / 14 / 15 Olivia / 16 Petra), and get started with learning the basics of app development by creating your first app

1. First, follow the steps on the following URL to make your Ubuntu / LinuxMint machine ready for configuration as an Android development rig:

2. Then go to developers.android.com,
and from the menu on top, navigate to
Develop > Tools > Developer Tools > Download.

[SOLVED] How to Fix on Ubuntu/Debian linux - MySQL/MariaDB: Out of resources when opening file (Errcode: 24)

This is an issue which occurs due to the maximum number of open files allowed for a process (mysql in this case) being very less that what is required - something that happens because you have lots of large tables / a large DB. To fix this, you just have to increase the limits in a few places.

Here is how you do it:

Step 1: Identify the issue
as limit on the max number of open files (1024) for a single process (mysql) by doing these as root user:
ulimit -a | grep open

Setting up a LAMP (Apache, MySQL, PHP) development environment on Ubuntu 13.04 (Raring) / 12.10 (Quantal) / 12.04 (Precise) for Drupal/Wordpress development

Setting up a LAMP (Apache, MySQL, PHP) development environment on Ubuntu 11.04 (Natty) / 11.10 (Oneiric) for Drupal/Wordpress development

Package Installation
From Terminal, execute the following command to install the required packages:

sudo apt-get install apache2 mysql-server mysql-client php5 libapache2-mod-php5 php5-gd php5-mysql php5-cli  php5-curl kcachegrind  php5-ffmpeg php5-mcrypt php5-imagick php5-xdebug phpmyadmin

Additional Configuration

1. To fix the Fully Qualified Domain Name issue for Apache


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