How to remove broken PPA repo on Ubuntu

There are times when the PPA repo that you add to your local machine becomes obsolete, maybe the developer abandoned the project or something happened, so how to remove these broken PPA repo anyway?

How to show list of PPA repo on Ubuntu

In the world of ubuntu, you will find your self adding more and more PPA repository to your system, and it's hard to keep track of PPA repository inside our machine, there is no tool that can show the list of PPA repo on our local computer.

Ubuntu error Could not get lock /var/lib/dpkg/lock

When you try to run 'sudo apt-get update', sometimes you will get error that says something like this: 'E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable), E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?'.

Uget download manager 2.0.8 on Ubuntu

Uget is a download manager similar to IDM on windows, you can install uget from ubuntu repository using apt-get install command but you won't get the latest version which is currently is version 2.0.8.

Command line web browser on Ubuntu

Another cool thing you can do on the command line is browsing the web, yes there is a text mode web browser on ubuntu, in this article i will show you how to install this text-mode web browser and how to use it.

Play music on command line Ubuntu

When i say, you can do anything on the command line, that's include playing music on the command line. In this article i'm going to show you that, it is possible to playback music files (mp3, ogg, wav, etc) on the command line of ubuntu.

How to show weather forecast on command line Ubuntu

When you are working on command line mode, it is very handy if you can get information about weather forescast within the command line itself, is it possible to do that?

How to refresh indicator panel Ubuntu

Ubuntu comes with some indicator panel applet on the top right corner of your screen, for example on my laptop, i have sound, date, battery, language, network and session indicator. The question is how to refresh these indicators.

View, edit and write ID3 tags with easytag

Easytag is the program you want to look, if you need to view, edit and write ID3 tag (as well as other tag format) on ubuntu. Let's say you have mp3 files and you want to enter information about the artist, title, album and so on, you can do that with easytag.

How to get info about specific command on Ubuntu

If you are ubuntu newbie, you might find difficulty when trying a new command line, let's say you want to use the 'ls' command, you don't know what parameters available for this command and you don't know what this command is about. 

Midori web browser on Ubuntu

Midori is a fast, lightweight and free web browser, that's the tag line of this relatively new web browser. So i'm curious about midori, i want to try it out and see if it's really true.

How to kill a process by name on Ubuntu

On the previous article i show you how to kill process using kill command, which require process id (PID) of the program that you want to kill. But actually you can also kill a process by it's name.

How to kill a process on Ubuntu

Sometimes there are programs (usually in graphical mode) that seems not responding when you try to close it, or sometimes there are program that's running on the background that we don't even know it's running, the question is how to close these annoying stuff?

How to check disk space usage on Ubuntu

This article i will show you how to check disk space usage on ubuntu via command line, there is a special program that can do this, a command line tool called 'df' can show you disk space usage on ubuntu.

How to show percentage battery on Ubuntu

If you use ubuntu on laptop, big chance that you will see battery indicator on the top right corner of your screen (next to the sound indicator applet), how to show percentage on this battery indicator?

How to change default apps on Ubuntu

This is another beginner tutorial, on ubuntu you can change default application for several category such as default app for web browser, default app for email client, default app for music, and so on. In this tutorial i'm going to show you how to change default app on ubuntu.

California, a calendar app on Ubuntu

Previously, i talked about calendar tool on the command line of ubuntu, some of you probably prefer a GUI application, so is there any calendar program that runs on GUI or graphical mode?

How to show Calendar on Ubuntu

Did you know that you can show calendar on the command line of ubuntu? i think everybody should learn this simple command, it might come in handy in the future.

Showing MySQL process using MyTop

When working with mysql database server, it would be great if we can monitor all process that's happening inside the database server, this kind of feature could be handy during performance test.

How to reset MySQL root password on Ubuntu

When you install mysql database server on ubuntu, you will prompted to enter password for user root, if you skip this password or leave it blank, you are out of luck my friend, because you can't login to mysql database server.

How to check Apache web server version on Ubuntu

Okay you probably have apache web server running on your server or your local computer or on virtual machine or somewhere else, whatever it doesn't matter, what i want to know is how to show the version of the apache web server.

How to install PHP MySQL on Ubuntu 16.04

I believe since ubuntu 16.04 LTS, the default php version on ubuntu repo is php version 7.0, so if you want php on ubuntu 16.04, you have to use php 7.0.

How to start and stop service on Ubuntu

If you are ubuntu newbie, you probably didn't know how to start, stop, and restart a service on ubuntu, plus how to see the status of the service itself. Don't worry, i'm here to help you with that.

How to show package dependency on Ubuntu

When you install a program or software package on ubuntu, it's hard to tell what are the package dependencies for that particular software, you never know until you run 'apt-get install' command, so is there a way to show package dependency before installing it?

Searching files using Catfish on Ubuntu

If you like searching files using graphical mode on ubuntu, you might having difficulties using ubuntu built-in searching tool, it is slow and doesn't give you much choice for searching files. Introducing 'catfish', a versatile file searching tool available for free on ubuntu.

How to install ElasticSearch plugin head on Ubuntu

Besides kibana, elasticsearch itself have it's own plugin, and one of the common plugin that people use on elasticsearch is the 'head' plugin. Using this plugin you can manage elasticsearch data with a nice clean web interface, it's almost like phpmyadmin for mysql.

How to install Kibana plugins (Sense, Marvel, Timelion)

Kibana is a powerful tool for visualize elasticsearch data, kibana can be even more powerful if you install plugins that available for it, such as sense, marvel, timelion, etc. Note that this tutorial is based on kibana version 4.5.1, newer kibanan version might be different.

How to install Kibana on Ubuntu

Kibana is web based dashboard for elasticsearch, and if you are playing with elasticsearch you might want to install kibana as well. Using kibana you can visualize your elasticsearch data.