izabera

for the latest chapter of what's becoming a blog on the most cursed bash you can imagine, let's do some maths together

euclid's algorithm for gcd could be written like this in python:

>>> def gcd(a, b):
...     if b:
...         return gcd(b, a%b)
... return a

gulafaran

Disclaimer: Please read this being aware of the fact that I'm not an expert regarding the things outlined below, however I made my best attempt.

Linux is in general defaulting to values and settings for a server workload with security/hardening in mind, distros usually tweak those a bit towards a more desktop based workload. thought id list a few things ive found out that can be tweaked a bit depending on your own hardware and personal preferences.

My Hardware

Lenovo Legion 7i 2023:

• 13th Gen Intel(R) Core(TM) i9-13900HX

grawity

The official documentation is in the [sd_notify(3)][1] manual page.

Very short summary:

1. Change your systemd service to Type=notify.
2. Your daemon will receive an environment variable NOTIFY_SOCKET, which contains a path to an AF_UNIX socket.
   (If the first path byte is @, this means an "abstract" socket, and you should change the 1st byte to 0x00 before using.)
3. The protocol consists of sending datagrams containing textual (UTF-8) status messages.
   Each message contains newline-separated KEY=value parameters.
4. When the daemon is ready, it must send READY=1, and systemd will transition the service from "starting" to "running".

gulafaran

Native TTY resolutions with nvidia and efifb

this only works on efi systems and on the efifb driver.

Getting Started

to get native TTY resolutions with nvidia blob today (2017-07-xx) you have to run your framebuffer on efifb but efifb itself cant change resolution it only uses whatever it gets handed with, which means you need your firmware or bootloader to set it and hand it over. currently i think its only grub and rEFInd that can do so.

egmontkob

Hyperlinks (a.k.a. HTML-like anchors) in terminal emulators

[ Update 2025-03-24: Commenting is disabled permanently. Previous comments are archived at web.archive.org. ]

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Most of the terminal emulators auto-detect when a URL appears onscreen and allow to conveniently open them (e.g. via Ctrl+click or Cmd+click, or the right click menu).

It was, however, not possible until now for arbitrary text to point to URLs, just as on webpages.

ChrisK2

youtube-dl hook script for mpv

Now part of mpv

As of 079ecd7 (2014-11-19), the hook script is now integrated into mpv and will be avaiblable when compiled with LUA support. It is (currently) disabled by default, to enable it add --ytdl=yes to your command-line or ytdl=yes to your mpv.conf.

Open Issues

• automatic selection of ASS subformat (rg3/youtube-dl#4019)
• youtube-dl may get stuck on direct URLs to less popular file types (m2ts) (rg3/youtube-dl#4149)