Now I Know That Technical Thing Too

Usually we install a package on Ubuntu 12.04 LTS using the apt-get command (or the Ubuntu Software Center) and we have the application available to us via the Dash Search Icon with all the necessary binaries in the user PATH. However, some applications are not bundled as apt packages and we need to install them ourselves. In this case, one major issue is that of not having a launcher icon and not having the binary in user PATH. Let's see the example of manual PHP Eclipse i.e. PDT installation You need to be root user for this, I usually keep manually installed applications in /opt directory Download eclipse package using wget or using your browser https://eclipse.org/pdt/#download cd /opt/ mkdir php_eclipse cd php_eclipse cp -rf eclipse-php-mars-1-linux-gtk-x86_64.tar.gz . tar -xvfz eclipse-php-mars-1-linux-gtk-x86_64.tar.gz Type eclipse in the Search bar and you can see your newly installed eclipse icon. Click on it and your application launches. cd eclipse The

TLDR;   Kate is one awesome editor ( If you don't like Vim for its 'CLI'ness ) When working from the command line we can use a handy tool ' xmllint ' to format XML files using its --format option. But it is a tedious task to use it when you have some content in Kate ( more so if it is an unsaved file ) and want to format it. Incase, you don't have xmllint installed, simply hit sudo apt-get install libxml2-utils and that will install it for you. If you use xmllint you would do something like this, Save File ( MySavedFile.xml ) Go to Command Line cat MySavedFile.txt | xmllint --format - > MySavedFile.txt and then reload our file in Kate . If you wish to remain in Kate and get this done then you would need to do, Select text ( Complete or Partial ) Hit ' Ctrl + \ '  or go to Tools -> Filter Text Incase your Kate does not have the option for 'Filter Text' under tools, you just need to enable the 'Text F

I was stuck in this situation where I followed all applied instructions to install/activate Flash Plugin for Chromium (Version 37.0.2062.120 Ubuntu 12.04 (281580) (64-bit)) and Firefox (38.0.5) 1. Download corresponding version of Flash from Adobe Site: https://get.adobe.com/flashplayer/ 2. Untar and move data to corresponding directories. 3. For some reason, it didn't work. Then after lot of search, I came across this post (Link at end of the article). Basically, what was missing in my case was a symbolic link in /usr/lib/mozilla/plugins/ So basically what we do is, Download the package from https://get.adobe.com/flashplayer/ mkdir /usr/lib/flash-plugin/ if it does not exist Extract the downloaded tar.gz and copy libflashplayer.so to / usr/lib/flash-plugin Give chmod 775 /usr/lib/flash-plugin/libflashplayer.so Finally, the missing link in my case, cd /usr/lib/mozilla/plugins/ ln -s /usr/lib/flash-plugin/libflashplayer.so . chmod 775 libflashplayer.so

It is better to know the size of a package before downloading it. At times, apt-get install prompts before downloading the package and we can read the size there. However sometimes dependencies are downloaded and then there is a prompt for the BIG package. But by now some packages are already installed and if the BIG package is rejected because of slow bandwidth etc. an extra effort is to be made to clean the unnecessary packages too.( apt-get autoremove does it too. But, it is extra effort after all)   What we can do is this, apt-cache --no-all-versions show $package | grep '^Size: '   E.g: apt-cache --no-all-versions show qtoctave | grep '^Size: ' Size: 3891520 The size is in bytes. Ubunut Version: 12.04 LTS

I have Ubuntu 12.04 LTS on my Dell Vostro laptop. I am able to send files over bluetooth from my PC to my Android mobile but not vice versa even though the two devices are paired.The file transfer just fails with " File Not Sent " message. The problem is the option to receive files is disabled in the gnome-file-share-properties of Ubuntu. To access this dialog open the terminal and type  gnome-file-share-properties Please note that you might be able to change the property if you are using the dialog as a root user.You need to be a non-root user for this. You just need to check the option for " Receive files in Downloads folder over Bluetooth " and it is done.

Booting is a process when a computer system initializes itself and loads the operating system(OS). So what happens during a boot process on a Linux machine ( this post is relevant to Ubuntu, however most systems would do similar steps ) ? When you push the power on button, the BIOS (Basic Input/Output System) loads from the ROM present on the motherboard BIOS It launches the Power On Self test (POST) which involves starting the hardware specifically the screen and the keyboard and testing of the RAM i.e. main memory   Boot Loader Once the POST completes, the boot loader takes over. The boot loader is present on the hard disk and for Linux systems the common ones are GRUB and ISOLINUX . Depending on the type of system i.e BIOS/MBR or EFI /UEFI the location of the boot loader varies. For the former it is present at the boot sector and for the latter it is in EFI partition Common boot loaders for Linux are GRUB and ISOLINUX.The boot loader is  responsible for loading th

The option for changing the default profile is not present in konsole (atleast not in Ubuntu 12.04 LTS). It is really irritating to switch profiles whenever I open a new tab. However, we can change it via the config file. The config file is usually present in the home folder /home/username/.kde/share/config/konsolerc It will look something like this, [$Version] update_info=konsole.upd:2.9.0-global-options [Colors] CurrentPalette=Forty Colors [Desktop Entry] DefaultProfile=NewDawn.profile [Favorite Profiles] Favorites=/home/username/.kde/share/apps/konsole/Shell.profile,/home/username/.kde/share/apps/konsole/NewDawn.profile [MainWindow] Height 900=901 State=AAAA/wAAAAD9AAAAAAAABf8AAANQAAAABAAAAAQAAAAIAAAACPwAAAAA ToolBarsMovable=Disabled Width 1600=1601 You can see in Favorite Profiles, I have added a profile named NewDawn apart from the default one named as Shell. My default profile was Shell.profile which I changed to NewDawn.profile by changing Defaul