atruskie’s gists

atruskie / strip-prefix-bytes.ps1

Last active November 2, 2016 07:18

Dodgy ass (but pretty fast) powershell to strip a prefix of bytes from the front of the file, if the prefix is in the file

	$pattern = "<html>`n"
	ls *.wav \| %{
	echo ("Fixing" + $_.FullName)
	if ([System.Text.Encoding]::ASCII.GetString((gc $_.FullName -Encoding Byte -TotalCount ($pattern.Length * 2))).StartsWith($pattern)) {
	echo ("Reading" + $_.FullName)
	$stream = $_.OpenRead()
	$stream.Seek($pattern.Length, [System.IO.SeekOrigin]::Begin)
	$destStream = [System.IO.File]::OpenWrite($_.FullName + ".trimmed.wav")
	echo ("Writing" + $_.FullName)
	$stream.CopyTo($destStream)

atruskie / find_folders_that_are_different.ps1

Created October 5, 2016 22:51

A one-liner I used to search through several hundred folders to find which ones did not have the same number of files/directories inside them.

 ls . -Directory | % { $count = (ls $_ -Recurse).Count; $_ | Select *,@{Name="count"; Expression={$count} } } | Group-Object Count

atruskie / excpetions_test.rb

Created September 8, 2016 05:28

ruby exceptions

	# This is a thought exercise.
	# Write down the output for the following two invocations
	# - `> me false`
	# - `> me true`
	def me(ensure_fail = false)
	begin
	puts "inside"
	fail "inside error"
	rescue => error
	puts "rescue"

atruskie / simulate_script.sh

Created February 18, 2016 05:51

Simulate a long running script without the annoyance of setting up dependencies

	#!/bin/bash
	ANALYSIS_LENGTH=$(shuf -i 10-1000 -n 1)
	echo -e "`date -u`: Analysis will take $ANALYSIS_LENGTH seconds"
	sleep $ANALYSIS_LENGTH
	echo "`date -u`: timeout completed"
	ANALYSIS_SUCCESS=$[$RANDOM % 2]
	echo -e "`date -u`: Analysis exit code: $ANALYSIS_SUCCESS"
	exit $ANALYSIS_SUCCESS

atruskie / complex_postres_query_template.sql

Created February 15, 2016 01:17

A template/pattern (that I commonly use) for creating complex PostgreSQL queries

	/*
	* This is a template for creating very complex PostgreSQL queries.
	* Large queries quickly become very unreadable because variables and
	* other snippets of code cannot be refactored out. This template demos
	* using variables within an anonymous PL/pgSQL block and returning the
	* table result, WITHOUT requiring write permission to the database!
	* The use of variables are trivial within this example.
	*/

	DO $$

atruskie / mock-bash.ps1

Last active February 28, 2017 06:03

Mock the bash export function in powershell

	function Set-EnvironmentVariable($key, $value) {
	Set-Content -Value $value -Path ("env:" + $key)
	New-Variable -Scope Global -Name $key -Value $value -Force
	}

	function export($envVar) {
	$split = $envVar.Trim().Split("=");
	Set-EnvironmentVariable $split[0] $split[1]
	}

atruskie / gist:db437b7afed669f8be87

Created December 4, 2014 22:20

Prof. Jemal Abawajy's definition of BigData

	"A distributed framework for managing and processing massive volumes
	of diverse and complex datasets possibly generated at different rates
	from different sources to solve complex problems an discover new knowledge
	in a scalable, efficient, and reliable manner" - Jemal Abawajy, BDCloud2014, 05/12/14

atruskie / VisualStudioAttacher.cs

Last active July 25, 2024 09:56

A class for programmatically attaching Visual Studio to debug a process. It can be used to automatically attach Visual Studio to your process. It can dynamically attach any solution to any process.

	// --------------------------------------------------------------------------------------------------------------------
	// <copyright file="AutoAttachVs.cs" company="QutEcoacoustics">
	// All code in this file and all associated files are the copyright and property of the QUT Ecoacoustics Research Group (formerly MQUTeR, and formerly QUT Bioacoustics Research Group).
	// </copyright>
	// <summary>
	// Example taken from this gist.
	// </summary>
	// --------------------------------------------------------------------------------------------------------------------

	#if DEBUG

Anthony Truskinger atruskie