Mahmoud Rusty Abdelkader mahmoudimus

ZSH CheatSheet

This is a cheat sheet for how to perform various actions to ZSH, which can be tricky to find on the web as the syntax is not intuitive and it is generally not very well-documented.

Strings

Description	Syntax
Get the length of a string	`${#VARNAME}`
Get a single character	`${VARNAME[index]}`

Command line usage

pandoc pandoc --quiet -f gfm -s somefile.md

What the options mean:

--quiet: supress "[WARNING] This document format requires a nonempty <title> element."
-f gfm: input format is Github Flavored Markdown

How to Convert iBook EPUBs to standard EPUBs

iBooks EPUBs actually show up on macOS as folders. If you need the actual file you can use the above script to convert your iBook directory of files to a destination directory.

The path of iBook files as of macOS 10.15.7 is: /Users/${USER}/Library/Mobile Documents/iCloud~com~apple~iBooks/Documents

Usage

🗺🐘 1000+ PostgreSQL EXTENSIONs

This is a list of URLs to PostgreSQL EXTENSION repos, listed in alphabetical order of parent repo, with active forks listed under each parent.

⭐️ >= 10 stars
⭐️⭐️ >= 100 stars
⭐️⭐️⭐️ >= 1000 stars
Numbers of stars might not be up-to-date.

Use macOS-style shortcuts in Windows / keyboard mappings using a Mac keyboard on Windows

Make Windows PC's shortcut act like macOS (Mac OS X) (using AutoHotkey (ahk) script)

With this AutoHotKey script, you can use most macOS style shortcuts (eg, cmd+c, cmd+v, ...) on Windows with a standard PC keyboard.

How does it work

Here's some examples of how this script work:

AccessToken with client role mapper and realm role mapper set to multivalue: "false"

{
  "jti": "4320f052-138a-47da-a5bc-1be47cfc5060",
  "exp": 1487009587,
  "nbf": 0,
  "iat": 1487009287,
  "iss": "http://localhost:8081/auth/realms/token-mapper-test",
  "aud": "dummy",

	# Attempts to demangle all mangled symbols in the current program using the Rust
	# mangling schemes, and replace the default symbol and function signature
	# (if applicable) with the demangled symbol.
	#
	# License: MIT OR Apache-2.0
	#@author Jack Grigg <[email protected]>
	#@category Symbol

	import string

	#!/bin/sh

	# Set the macOS installer path as a variable
	MACOS_INSTALLER="/Applications/$(ls /Applications \| grep "Install macOS")"
	MOUNT_POINT="$MACOS_INSTALLER/Contents/SharedSupport"
	echo "macOS installer is \"$MACOS_INSTALLER\""

	# Set the target disk as a variable
	TARGET=$(diskutil info "$(bless --info --getBoot)" \| awk -F':' '/Volume Name/ { print $2 }' \| sed -e 's/^[[:space:]]*//')
	echo "Target disk is \"$TARGET\""

	#!/usr/bin/env bash
	#===========================================================================
	# Works only with the official image available in the Mac App Store.
	# Make sure you download the official installer before running this script.
	#===========================================================================

	# Change this at your desire. Sometimes this works out of the box, sometimes not.
	# Default size: ~16 GB
	DISK_SIZE="15361m"

	From self[at]sungpae.com Mon Nov 8 16:59:48 2021
	Date: Mon, 8 Nov 2021 16:59:48 -0600
	From: Sung Pae <self[at]sungpae.com>
	To: [email protected]
	Subject: Permissive forwarding rule leads to unintentional exposure of
	containers to external hosts
	Message-ID: <YYmr4l1isfH9VQCn@SHANGRILA>
	MIME-Version: 1.0
	Content-Type: multipart/signed; micalg=pgp-sha256;
	protocol="application/pgp-signature"; boundary="QR1yLfEBO/zgxYVA"