Hydra zh4n7wm

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

哈工大课程

两本书

From: https://github.com/clowwindy/Awesome-Networking

Awesome Networking

A curated list of awesome networking libraries, resources and shiny things.

HTTP
- HTTP: The Definitive Guide
HTTP/1.1

why don't use pyenv

I tried pyenv, but it installed python 3.6 can not find fcntl module.

enable software collections

sudo yum install centos-release-scl

install python 3

extract audio from swf file, then save as mp3 file

$ ffmpeg -i input.swf -acodec copy output.mp3
$ for x in $(ls *.swf); do output=$(echo $x | sed 's/.swf/.mp3/'); ffmpeg -i $x -acodec copy ~/Downloads/nce-flash-01/$output; done

download m3u8 to mp4

$ ffmpeg -i https://media001.geekbang.org/13d6aa3bd2fd4f01a6ebc04771b88f0e/03d3c1eeedcc4854b9b5b5c1a88b8921-a37f6999637db379b3b9c31b62edfdc9-hd.m3u8 -c copy guoyu.mp4

成都

tcpdump

capture http traffic, port: 8080

$ sudo tcpdump -i any -s 0 'tcp port 8080' -vv

	#!/usr/bin/env python
	import sys
	import json
	import types


	def usage():
	print('usage:')
	print(
	"""\techo '{"foo": [{"bar": "value"}]}' \| """

	#!/bin/bash
	#
	# Install specific version of a Homebrew formula
	#
	# Usage: brewv.sh formula_name desired_version
	#
	# Notes:
	# - this will unshallow your brew repo copy. It might take some time the first time
	# you call this script
	# - it will uninstall (instead of unlink) all your other versions of the formula.

	### computer

	- [index-of.es](http://index-of.es/)
	- [lagout](https://doc.lagout.org/)