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How to set a static IP in Ubuntu from the shell

One of the first things I do for my desktops is set them with a static IP. Below is how I go about it. First uninstall Network Manager. This will just simply get in the way. Edit as root: /etc/network/interfaces and adjust it to your needs (in this example setup I will use the IP address 192.168.0.100): # This file ... Read More »

How to use apt-get and dpkg in Ubuntu

Here are a few tricks for APT, the Advanced Packaging Tool used on Debian and Debian-based distributions like Ubuntu. View all the packages installed on a system The easiest way to do it is: dpkg –get-selections It does not require to be root, and will display all the packages installed via APT. For example, the first lines may look something ... Read More »

how to clear cached memory in ubuntu

Sometimes, when i see my system got slower, then i open the phpsysinfo. My using memory almost full. Even i restart my PC, the cached memory size still big. I want to clear cached memory but i’m hard to find to solution because i’m scar if it will cause my ubuntu crash. After browse in many site ( thanks to ... Read More »

how to use dpkg in ubuntu

Only the superuser (sudo) can use the dpkg application. Dpkg is a typical GNU/Linux application that is controlled by command-line switches. Possibly the most common use of dpkg is to install a local .deb file.To install a .deb file, use the command: $sudo dpkg -i filename.deb Dpkg can also be used to: * dpkg –unpack: unpacks the file but does ... Read More »