UNIX Archives - cialu.net

50 Useful and Fun Linux Commands Every Power User Should Know

June 10, 2025 cialu Technology

This article includes an in-depth introduction to the Linux terminal, detailed descriptions of each command, installation instructions for various distributions (Debian/Ubuntu, Fedora, openSUSE, and Arch), usage examples, and relevant links to official documentation and repositories. Introduction: The Terminal, the Brain of Linux In the age of graphical user interfaces and slick desktops, the command-line interface (CLI) remains a core pillar[…]

The Birth of UNIX at Bell Labs with Brian Kernighan

November 13, 2020 cialu Technology

When you work on your computer, there are so many things you take for granted: operating systems, programming languages, they all have to come from somewhere. In the late 1960s and 1970s, that somewhere was Bell Labs, and the operating system they were building was UNIX. They were building more than just an operating system though. They were building a[…]

Systemd. Joys and sorrows of a misunderstood demon

November 19, 2019 cialu Technology

Systemd is a software suite of daemons, libraries and administration utilities designed with the aim of centralizing the management and configuration of Unix-like operating systems. Systemd is generally used as init system to use to bootstrap user space during startup and manage user processes. It replaces the classic origin, which is the descending one from the Unix System V (SysVinit).[…]

Tar and gzip. Extract that files

January 8, 2019 cialu Technology

Tar, tarball, gzip. A kind of tape archive, a tar file is a collection of files archived in a single ‘tarball’ file and compressing it with gzip to save disk space results in a tar.gz compressed file. Simple, no? GNUzip is also used in HTTP compression GNU Gzip, or gzip, is a file format and a software application used for[…]