In a previous video, we talked about the cut command which can be used to extract columns from a CSV or tabular text data file.
The cut command is a POSIX-defined utility to remove unwanted data from a tabular text data file. With the cut utility you can remove bytes, character range ("columns") or fields on each line of an input file. Something that is particularly useful when you have to pre-process a CSV file from (or "for") a spreadsheet or a database.
The Raspberry Pi is a great platform to experiment with cluster computing or networking. But as soon as you have more than two or three boards, you need to find a way to arrange them in a practical and compact way. Not only they will take less space on your desk, but they will also look more professional and will be easier to store and transport.
When you start learning the Bash & Linux Command Line Tools, there are
soooo many commands to know. I don’t know if those commands are the
most useful. But they are definitely those I use the most often…
Sed is really a great tool to filter & transform text — but the syntax
is not always easy. Whether you’re a beginner or a more advanced user looking for a memory aid,
this cheatsheet will help you remember the basic sed commands.
Solaris is a Unix-like operating system developed since the 80s and particularly well suited for server or cloud infrastructure applications. Solaris has a rich and complex history made of code rebase, forks and acquisitions which are detailed in this infographics.
ARM, MIPS, SPARC, POWER/PowerPC, RISC-V, Itanium, x86… All of them are popular microprocessors in use today. But where did they come from? And how are they related to other legacy technologies?
Maybe you want to run a Windows software on Linux? Or optimize your costs by running several virtual servers on the same hardware? In those cases, like in many other ones, virtualization is the technology to leverage.
There are a lot of publications about Linux issued on the Web every day. By exploring the keywords contained in those publications, we may learn more about our favorite operating system and the way it is perceived.