PolKit 🇬🇧 (oder in der langen Form: PolicyKit) ist ein im Hintergrund laufender Dienst, der es erlaubt, Berechtigung für die Nutzung von Systemkomponenten und Software festzulegen.

So kann mittels PolKit z.B. festgelegt werden, dass beim Aufruf eines Programms nach dem Passwort eines Nutzer mit Root-Rechten gefragt wird, auch wenn das Programm nicht mittels sudo oder pkexec gestartet wurde. PolKit ist auch in Werkzeuge der Systemverwaltung von GNOME integriert. Dies ist daran zu erkennen, dass bei vielen Anwendungen nicht mehr das Root-Passwort beim Start der Anwendung abgefragt wird, sondern dass die Anwendung durch einen

This article explains the role of the X Window System when it was first developed in the 1980s, and today. I highlight three advanced traits:

X was highly portable, so that applications written for X could run on virtually any Unix system, on BSD, on GNU/Linux, and on the Mac.
X allowed distributed computing. You could run graphical applications hosted on another computer, displaying them on your local desktop.
X was customizable to an almost limitless extent. This made X a platform for sophisticated interfaces such as KDE and GNOME.

Here are 11 Linux commands that one sysadmin cannot live without.

This is all to say that the more standard tools I know about, the more powerful my throwaway commands become, the faster I can write them, and the quicker my clients get their actual problems solved.

Did you know there is a Linux package you can install that is actually called "HOLLYWOOD" and that is designed to simply LOOK COOL ON SCREEN? (I've already spotted it on at least one major news site this cycle)

via Ethan "Mr.E" Schoonover (@ethanschoonover)

Fire up your linux terminal and $ telnet http://mapscii.me # to browse the world, and $ curl http://wttr.it # to get the weather and finally install and run cmatrix

Neofetch is a command-line system information tool written in bash 3.2+. Neofetch displays information about your operating system, software and hardware in an aesthetic and visually pleasing way.

The overall purpose of Neofetch is to be used in screen-shots of your system. Neofetch shows the information other people want to see. There are other tools available for proper system statistic/diagnostics.

cbonsai is a bonsai tree generator, written in C using ncurses. It intelligently creates, colors, and positions a bonsai tree, and is entirely configurable via CLI options-- see usage. There are 2 modes of operation: static (see finished bonsai tree), and live (see growth step-by-step).

Welcome to the ⋱Neo⋱-MC project! The goals of it are to:

make the hidden gem – mcedit – shine and grow to be able to compete with Vim and Emacs,
add a scripting language to mcedit and mc to make this possible,
add some meaningful plugins written in the scripting language.

Check out MCEditWishList for a curated list of the planned enhancements.

I check the v4.1 manpage: "Ranges or lists of names are not allowed."

And the crontab entry parsing source sports a familiar phrase:

/ no numbers, look for a string if we have any /

So vixie-cron v4.1 seems to support named weekday & month ranges & lists, same as cronie.

But then I vaguely seemed to remember seeing Paul Vixie's name on #techtwitter somewhere... and sure enough: @paulvixie
.

So... let's DM him. (Why not? Maybe he's as bored as I am.)

The goto shell utility allows users to navigate to aliased directories and also supports autocompletion.
How it works

Before you can use goto, you need to register your directory aliases. For example:

goto -r dev /home/iridakos/development

then change to that directory, e.g.:

goto dev

goto.gif
goto demo
Autocompletion in goto

goto comes with a nice autocompletion script—whenever you press the Tab key after the goto command, Bash or Zsh will prompt you with suggestions of the aliases that are available:

GitHub has just beta-released GitHub CLI, an open-source tool that allows developers to work with issues and pull requests from the command line. Written in Go, GitHub CLI can be installed on Linux, macOS, and Windows.

Using GitHub CLI, developers will be able to list open issues and filter them based on assignee, label, and state; to create pull requests; to check out pull requests locally; to view the status of your work, and more.

I also use a tool called Storm, which helps you add SSH connections to your SSH config, so you don’t have to remember them all. Y

A nice feature I’ve become used to in the last year is a so-called “smart directory changer” that keeps track of the directories you change into, and then lets you jump to popular ones quickly, using fragments of the path to find the right location.

There is quite some prior art in this, such as autojump, fasd or z, but I could not resist building my own implementation of it, optimized for zsh.

For bureaucratic reasons, a colleague of mine had to print, sign, scan and send by email a high number of pages. To save trees, ink, time, and to stick it to the bureaucrats, I wrote this script.

An IT-etymology/linuxguistics page for people wondering "how come the package yasysmand-cling has such a strange name?"

Giving cryptic names to software is a well-established UNIX tradition, and the explanations are often missing from the documentation, either because the developers imagine it's obvious (usually wrongly) or because they think nobody cares (and here they're usually right, or it would turn up as FAQ material).

After RTFM’ing, I realized, under the hood, systemd just runs mount command to mount the specified partition with the specified mount options listed in the mount unit file. Basically, you need to specify the following options in your unit file:

What= a partition name, path or UUID to mount
Where= an absolute path of a directory i.e. path to a mount point. If the mount point is non-existent, it will be created
Type= file system type. In most cases mount command auto-detects the file system
Options= Mount options to use when mounting

In the end, you can convert your typical fstab entry such as this:

UUID=86fef3b2-bdc9-47fa-bbb1-4e528a89d222 /mnt/backups ext4 defaults 0 0

to:

[Mount]
What=/dev/disk/by-uuid/86fef3b2-bdc9-47fa-bbb1-4e528a89d222
Where=/mnt/backups
Type=ext4
Options=defaults

You stuffed command shell with aliases, tools and colors but you lose it all when using ssh. The mission of xxh is to bring your favorite shell wherever you go through ssh without root access and system installations.

If you like the idea of xxh click star on the repo and tweet now.

Blazing fast terminal client for git written in Rust

Features

Fast and intuitive keyboard only control
Context based help (no need to memorize tons of hot-keys)
Inspect, commit, and amend changes (incl. hooks: commit-msg/post-commit)
Stage, unstage, revert and reset files and hunks
Stashing (save, apply, drop, and inspect)
Push to remote
Branch List (create, rename, delete)
Browse commit log, diff committed changes
Scalable terminal UI layout
Async input polling
Async git API for fluid control

The cat (short for concatenate) command is one of the most frequently used flexible commands on Linux and Unix-like operating systems. Say hello to bat Linux command, which is a cat command written in Rust programming language. The bat command comes with syntax highlighting, git integration, and works as is a drop-in cat command replacement. Let us see how to install bat on Linux and Unix system for fun and profit.