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@systemed
systemed / gist:be2d6bb242d2fa497b5d93dcafe85f0c
Last active February 19, 2025 08:29
Routing algorithm implementations
(Dijkstra and plain A* are generally not included here as there are thousands of
implementations, though I've made an exception for rare Ruby and Crystal versions,
and for Thor, Mapzen's enhanced A*. )
A* Ruby https://github.com/georgian-se/shortest-path
A* Crystal https://github.com/petoem/a-star.cr
A* (bidirectional with shortcuts) C++ https://github.com/valhalla/valhalla
NBA* JS https://github.com/anvaka/ngraph.path
NBA* Java https://github.com/coderodde/GraphSearchPal
NBA* Java https://github.com/coderodde/FunkyPathfinding
@JoshuaTPierce
JoshuaTPierce / RMD_and_GitHub.docx
Created June 7, 2017 17:21
Creating and Pushing a R-Markdown Document to Github (including graphs)
Go to github
Create new repository [don't need to initialize with the readme (can add later)]
Go to R Studio
File -> New Project -> Version Control -> Git
Ctrl+V repository URL from GitHub
File -> New -> Markdown, enter Title, etc.
In the Markdown window, change "output=html_document" to "output=github_document"
Knit the document for the first time, will prompt you to save
Save as Title.rmd
In the "git" tab of the R studio Environment window, you will notice that the knit produced:
@phizaz
phizaz / keybindings.json
Created February 24, 2017 14:25
VSCode Settings
// Place your key bindings in this file to overwrite the defaults
[{
"key": "ctrl+a",
"command": "editor.action.selectAll"
},
{
"key": "ctrl+x",
"command": "editor.action.clipboardCutAction"
},
{
@ageis
ageis / systemd_service_hardening.md
Last active May 14, 2025 22:12
Options for hardening systemd service units

security and hardening options for systemd service units

A common and reliable pattern in service unit files is thus:

NoNewPrivileges=yes
PrivateTmp=yes
PrivateDevices=yes
DevicePolicy=closed
ProtectSystem=strict
@novoid
novoid / guess-target-folder.sh
Last active March 4, 2024 13:11
Moving files to pre-defined standard directories according to their file name or file content
#!/bin/sh
FILENAME=$(basename $0)
DEBUG="true" ## if true, verbose debug output is activated
DEBUG="false"
ERRORFOLDER="unknown_destinations" ## if found as a sub-directory, all non-matching files are moved there
SIMULATE="true" ## if true, no files are moved
SIMULATE="false"
warn_and_exit()
{
@tiagoengel
tiagoengel / noise-cancellation.sh
Last active July 21, 2024 03:23
Hiss / White / Static noise cancellation on Linux using Pulseaudio and Sox
#!/bin/bash
# You'll need to have sox, pavucontrol and alsa-utils installed, and the snd_aloop kernel module loaded.
# You can configure your system to load it on startup or load it manually with "sudo modprobe snd_aloop"
# Once this is script is running, you need to start recording audio in the application of your
# preference, open pavucontrol, go to the recording tab and change the recording source of that application
# to "Monitor of Loopback ..."
time=5
@marcan
marcan / linux.sh
Last active July 21, 2024 14:00
Linux kernel initialization, translated to bash
#!/boot/bzImage
# Linux kernel userspace initialization code, translated to bash
# (Minus floppy disk handling, because seriously, it's 2017.)
# Not 100% accurate, but gives you a good idea of how kernel init works
# GPLv2, Copyright 2017 Hector Martin <[email protected]>
# Based on Linux 4.10-rc2.
# Note: pretend chroot is a builtin and affects the current process
# Note: kernel actually uses major/minor device numbers instead of device name
#! /bin/bash -ex
# Convert Landsat 8 GeoTIFF images into RGB pan-sharpened JPEGs.
#
# Requirements:
# * gdal http://www.mapbox.com/tilemill/docs/guides/gdal/
# * Dan Stahlke's https://github.com/gina-alaska/dans-gdal-scripts
# * convert (image-magick)
#
# Reference info:
@bossen
bossen / skiptofade.lua
Last active May 8, 2022 01:29
mpv lua script. Seeks forward until a black screen appears. Built to skip openings. Uses the lavfi blackdetect filter.
-- betterchapters.lua
-- seeks forward until a black screen appears.
-- default keybinding: b
-- Keybind names: skip_scene
script_name = mp.get_script_name()
detect_label = string.format("%s-detect", script_name)
detecting = false
threshold = 0.9
detection_span = 0.05
negation = false
@avih
avih / equalizer.lua
Last active February 26, 2025 19:12
Visual equalizer script for mpv
--[[
mpv 5-bands equalizer with visual feedback.
Copyright 2016 Avi Halachmi ( https://github.com/avih )
License: public domain
Default config:
- Enter/exit equilizer keys mode: ctrl+e
- Equalizer keys: 2/w control bass ... 6/y control treble, and middles in between
- Toggle equalizer without changing its values: ctrl+E (ctrl+shift+e)