Bart Black reanimat0r

lsof / netstat on macos

lsof - list open files

display (list) all open TCP+UDP ports and grep for listening ones

sudo lsof -i -P | grep LISTEN

COMMAND     PID           USER   FD   TYPE             DEVICE SIZE/OFF   NODE NAME
launchd       1           root   11u  IPv6 0x26dd73cb700390df      0t0    TCP *:22 (LISTEN)
....

Awesome Courses

Introduction

There is a lot of ~~hidden~~ treasure lying within university pages scattered across the internet. This list is an attempt to bring to light those awesome courses which make their high-quality material i.e. assignments, lectures, notes, readings & examinations available online for free.

Inside the Claude Code source

Anthropic's Claude Code CLI source code leaked onto GitHub recently. All of it. About 1,900 files and a lot of TypeScript.

I read through the key modules. What follows is a breakdown of the surprising parts: how the system actually works, where Anthropic made clever engineering choices, and where their approach diverges from OpenAI's Codex in ways you wouldn't guess from using either tool.

Lifecycle of a request

Here's what happens when you type a message into Claude Code:

Microsoft Mac Downloads

These links were copied formerly from https://macadmins.software/.

All links on this gist point to Microsoft's official download on its Content Delivery Network (CDN).

Package Release	CFBundle Identifier	Download
Microsoft 365 and Office 2024 (2021) Suite Installer (Word / Excel / PowerPoint / Outlook / OneNote / OneDrive / MAU)	N/A	https://go.microsoft.com/fwlink/?linkid=525133
Microsoft 365 BusinessPro Suite Installer (Word / Excel / PowerPoint / Outlook / OneNote / OneDrive / Teams / Defender Shim / MAU)	N/A

Windows command	Unix command	Notes
set	env	Set on Windows prints a list of all environment variables. For individual environment variables, set is the same as echo $ on Unix.
set Path	export $PATH	Print the value of the environment variable using set in Windows.
set PROJ	--	result: PROJ=c:\project
echo %PROJ%	echo $PROJ	result: c:\project

|

	import os
	import sys
	import time
	import winappdbg
	import traceback


	class MyEventHandler(winappdbg.EventHandler):

	last_alloc_memory = 0

	import zlib, sys

	def get_id(mac):
	mac = int(mac, 16).to_bytes(6, 'big')
	return checksum(mac, True)

	def checksum(input, compression=False):

	v3 = zlib.crc32(input, 0xDEADBEEF)
	v4 = zlib.crc32(input, v3)

	# 注：fish v3.6.0+ abbr 不再设置为 Universal
	# 升级 fish 注意需清除 $__fish_config_dir/fish_variables (一般为 ~/.config/fish/fish_variables) 中旧的变量

	# (MacOS) application
	abbr android 'open -a Android\ Studio'
	abbr anki 'open -a anki'
	abbr boop 'open -a boop'
	abbr ff 'open -a firefox'
	abbr filezilla 'open -a filezilla'
	abbr haroopad 'open -a haroopad'

	# Path to Oh My Fish install.
	set -q XDG_DATA_HOME
	and set -gx OMF_PATH "$XDG_DATA_HOME/omf"
	or set -gx OMF_PATH "$HOME/.local/share/omf"

	# Customize Oh My Fish configuration path.
	#set -gx OMF_CONFIG /Users/laszlokarolyi/.config/omf

	# Reload user_abbreviations by executing:
	. ~/.config/fish/abbreviations/fish_user_abbreviations.fish

	# Text editor
	abbr -a -g m micro
	alias hex='hx'
	abbr -a -g hx helix
	abbr -a -g v nvim
	export EDITOR=nvim
	export MANPAGER='nvim +Man!'
	export BROWSER=librewolf
	export NNN_PLUG='z:autojump;f:finder;o:fzopen;d:diffs'