The tar command can be used to create compressed archives from the command line on linux, as well as extract files from compressed archives. Here are some quick examples of how to use it.
Gnome Flashback is an alternative desktop environment that gets you the old style desktop interface on Ubuntu. This tutorial shows how to install it on Ubuntu or Linux Mint and customize it.
This tutorial shows you how to install and configure a mail server with Postfix and Dovecot on a Ubuntu or Debian based linux server. Postfix is the SMTP server and Dovecot is the IMAP/POP server.
This tutorial shows how to specify and use external smtp servers to send emails from command line on Linux using commands like mailx and swaks, along with support for authentication and encryption.
Quick tutorial with simple examples of how to use the mailx command on Linux to send emails from command line with features like attachments and external smtp servers.
The dd command on Linux can be used to measure the read and write speed of usb/pen drives and solid state drives (ssd), and this tutorial shows you how.
Quick tip on How to fix Virtualbox error “Kernel driver not installed (rc=-1908)” on Ubuntu 14.04, Linux Mint 17 and similar Linux distros.
Check details about the processor/cpu like the architecture, number of cores, hyperthreading support etc on Linux using lscpu and hwloc commands
If your isp does not support ipv6 then you can disable it and improve network performance and speed on Ubuntu.
Just installed elementary OS 0.2 Luna ? Then here is a bunch of tips to tweak elementary and install cool apps to make the system better and get the best desktop experience