In our Advanced Console tricks series we have already covered subjects like Getting help and processes management. Now it’s time to understand how the file permissions work. In this article we’re going to cover such issues as the basics of Linux file access rights, useful commands allowing you to manage file permissions as well as numerical and special access modes.

Detailed and proper documentation of source code and programs is the milestone of Unix culture, as we may read in “The art of Unix Programming” by Eric Steven Raymond. The first application on Unix was the platform to prepare documents. The platform was used by Bell Labs to prepare patent documents. Effective work with documentation and searching for needed information is the key feature when working on unix-like systems.

One of my favourite tools (that I use almost everyday) is PuTTY. I use it both on Windows (very useful because Windows has no SSH client) and on Linux. It is a program that enables SSH connections using a graphical interface. It also allows for the establishment of SSH tunnels as well as omitting some [...]

System and enviromental variables define parts of the system behavior so it’s worth knowing what they are, what they influence and how to adjust them to your needs. This is the last part of the “console basics” series.

Every Unix system offers several useful commands for finding files and searching them for strings. Together with programming techniques such as streams, pipes, redirections, and regular expressions they comprise very powerful tools ideal for administrative tasks.

This is the third article in the “CLI tricks” series. This time we are going to cover UNIX-specific pipes, streams and redirections, explaining what they are for and how they can help us in every day console tasks.
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Unix systems provide a number of commands to manage files and directories. Their strong point is the ability to use them in a rather simple manner against a group of files/directories meeting certain conditions. For example all the files satisfying specific criteria can be deleted or have their names changed en masse.

In this article we’d like to present the basic concepts needed to navigate the console world. We are going to find out what a shell is all about, what is a terminal, and what the famous console is actually for. This is the first article in he new series about Linux command line interface, so stay tuned!