Max Kratz maxkratz

This is a simple way of importing MySQL database in Docker.

In you Dockerfile you must have a shared folder. Shared folder is a directory in your host machine that is mounted to Docker instance.
Put the exported sql file in the shared folder.
Login to your Docker instance via docker exec -it DOCKER_CONTAINER_ID bin/bash.
Login to MySQL via mysql -u USERNAME -p.

This guide is unmaintained and was created for a specific workshop in 2017. It remains as a legacy reference. Use at your own risk.

Running your own encrypted chat service with Matrix and Riot

Workshop Instructor:

This workshop is distributed under a CC BY-SA 4.0 license.

Commands to get commit statistics for a Git repository from the command line -
using git log, git shortlog and friends.

To use a yubico U2F token on CentOS/RHEL/Fedora you need to add the specific udev file to your system to recognize them.

Get the udev rules

wget -O /etc/udev/rules.d/70-u2f.rules https://raw.githubusercontent.com/Yubico/libu2f-host/master/70-u2f.rules

Reload device events

This can reduce files to ~15% of their size (2.3M to 345K, in one case) with no obvious degradation of quality.

ghostscript -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/printer -dNOPAUSE -dQUIET -dBATCH -sOutputFile=output.pdf input.pdf

Other options for PDFSETTINGS:

/screen selects low-resolution output similar to the Acrobat Distiller "Screen Optimized" setting.
/ebook selects medium-resolution output similar to the Acrobat Distiller "eBook" setting.
/printer selects output similar to the Acrobat Distiller "Print Optimized" setting.
/prepress selects output similar to Acrobat Distiller "Prepress Optimized" setting.

start new:

tmux

start new with session name:

tmux new -s myname

	#!/bin/bash
	###########
	#
	# Batch convert DVD Videos with HandBrake CLI
	# The script will recursively look for "VIDEO_TS" folders and parse them
	#
	# Read this to understand:
	# https://mattgadient.com/2013/06/12/a-best-settings-guide-for-handbrake-0-9-9/
	# http://www.thewebernets.com/2015/02/28/easiest-best-optimal-settings-for-handbrake-dvd-video-conversion-on-mac-windows-and-linux/
	#

	#compdef assh

	# assh autocompletion for oh-my-zsh
	# Requires: assh installed
	# Author: Dominik Schilling (@ocean90)

	# Install:
	# Copy the file to ~/.oh-my-zsh/plugins/assh/_assh and add assh to the plugins list in your ~/.zshrc file.

	# Resources:

	def path_cost(graph, path, weights=None):
	pathcost = 0
	for i in range(len(path)):
	if i > 0:
	edge=graph.es.find(_source=path[i-1], _target=path[i])
	if weights != None:
	pathcost += edge[weights]
	else:
	#just count the number of edges
	pathcost += 1