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Kim Eik netbrain

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netbrain / nixos-wsl

Created October 6, 2023 07:32

nixos wsl

	# Function to download the tar file
	function Download-NixOS {
	$url = "https://github.com/nix-community/nixos-wsl/releases/latest/download/nixos-wsl.tar.gz"
	$output = "$env:TEMP\nixos-wsl.tar.gz"
	Invoke-WebRequest -Uri $url -OutFile $output
	return $output
	}

	# Function to check if WSL is installed and install if it's not
	function Install-WSL {

netbrain / gist:288ba07edee771f5c7fd086a0ea9f62e

Last active July 7, 2024 05:02

Windows 11 + WSL + DOCKER + NVIDIA

	# Setup WSL
	wsl --update
	wsl --install -d Debian

	# Enter WSL
	wsl

	# Setup base system
	sudo apt update
	sudo apt install -y --no-install-recommends apt-transport-https ca-certificates curl gnupg2 vim

netbrain / errs.go

Created April 9, 2021 07:04

multiple errors

netbrain / capture.go

Last active September 14, 2020 08:33

Capture CGO output, realtime.

netbrain / gist:eca4bb501a0a4764833c705d6ebf0014

Last active January 27, 2020 06:09

various image oprations

	//dump jpeg
	curl "http://10.41.3.120/cgi-bin/faststream.jpg?stream=MxPEG&fps=0.1" \| mxgconv_linux format=jpeg,of=img

	//split images
	find ./ \| grep jpg \|xargs -I@ convert -quality 100 -crop 640x480 @ @_cropped_%d.jpg

	//preserve original filename in images
	ls \| xargs -I@ echo exiftool -Comment=@ @

	//rename file to md5sum name

netbrain / gist:02d298582744eec763b86f746cbdc791

Created November 1, 2019 06:50

cgo

	// A []C.int64_t slice backed by C memory.
	// See: https://github.com/golang/go/wiki/cgo#turning-c-arrays-into-go-slices
	// Using [1<<27] instead of [1<<30] so it works on 32-bit architecture

netbrain / spit-test-train.sh

Last active January 27, 2020 06:12

Create test/train set example

	#!/bin/bash

	find /path/to/JPEGImages \| grep jpg$ \| shuf > files.list
	cat files.list \| wc -l

	#180 = 10%
	cat files.list \| head -n 180 > test.txt

	#rest goes into train.txt
	cat files.list \| grep -v -f test.txt > train.txt

netbrain / Bus.ts

Created December 12, 2018 08:00

Simple Typescript Event Bus

	interface Subscription<T> {
	id: number,
	type: new () => T
	fn: (event:T)=>any
	}

	class Bus {
	private seq:number = 0;
	private subscribers:Map<string,Array<Subscription<any>>> = new Map();

netbrain / retrans

Created February 8, 2018 10:54

retrans notes

	/* RETRANSMISSION/FAST RETRANSMISSION/OUT-OF-ORDER
	* If the segment contains data (or is a SYN or a FIN) and
	* if it does not advance the sequence number, it must be one
	* of these three.
	* Only test for this if we know what the seq number should be
	* (tcpd->fwd->nextseq)
	*
	* Note that a simple KeepAlive is not a retransmission
	*/

netbrain / enc2geojson.sh

Created November 10, 2017 11:06

Convert enc files to geojson files

	#!/bin/bash
	ls *.000 \| xargs -I @ bash -c "ogrinfo @ \| awk '{if(NR>3)print \$2}' \| xargs -I xxx ogr2ogr -f \"GeoJSON\" @_xxx.geojson @ xxx"

	#!/bin/bash

	find /path/to/JPEGImages \| grep jpg$ \| shuf > files.list
	cat files.list \| wc -l

	#180 = 10%
	cat files.list \| head -n 180 > test.txt

	#rest goes into train.txt
	cat files.list \| grep -v -f test.txt > train.txt