Roger Senna rsenna

Comparison of Bash, Elvish, NuShell, Murex, es-shell, fish, xonsh, PowerShell, Oils (Oil/OSH/YSH) and Ion shells

(Originally generated by ChatGPT and reviewed/edited by Claude; now corrected/expanded based on reader feedback. YMMV.)

(generated by chatgpt 4o and reviewed/edited by claude 3.5 sonnet, YMMV)

Before you start, please NOTE: this guide does not cover rootless containers!

On an hypervisor with LXD installed, create a new container, ensuring that -c security.nesting=true -c security.privileged=true is set:

lxc launch -c security.nesting=true -c security.privileged=true images:fedora/35 my-container

If the container already exists, set this parameter through lxc config:

lxc config set my-container security.nesting=true
lxc config set my-container security.privileged=true

log4j RCE Exploitation Detection

You can use these commands and rules to search for exploitation attempts against log4j RCE vulnerability CVE-2021-44228 in a MacOS using ZSH.

Based on https://gist.github.com/Neo23x0/e4c8b03ff8cdf1fa63b7d15db6e3860b

Grep / Zgrep

This command searches for exploitation attempts in uncompressed files in folder /var/log and all sub folders.

Alternative shell-scripting languages (or shells)

sorted by repo name [a-z]

`amirbawab/BashClass`

BashClass is an Object Oriented Programming language that compiles to BASH 4.4

repo
- https://github.com/amirbawab/BashClass

Nerd Fonts for your IDE

https://www.nerdfonts.com/font-downloads

The following solution thanks to @hackerzgz & @snacky101 will install all nerd fonts;

brew tap homebrew/cask-fonts
brew search '/font-.*-nerd-font/' | awk '{ print $1 }' | xargs -I{} brew install --cask {} || true

Disable macOS Zscaler

The following script can be used to disable Zscaler on macOS. Zscaler is corporate spyware and security software that controls access to Internet resources and spoofs TLS certificates to allow inspection of encrypted communications on centrally managed corporate computers.

This script will not uninstall the Zscaler software.

	#!/usr/bin/env python3
	# /// script
	# dependencies = [
	# "mistune==3.0.2",
	# ]
	# ///

	import os
	import sys
	import hashlib

	using System;
	using System.Threading;
	using System.Threading.Tasks;

	namespace Atom
	{
	public class Atom<T> where T : class
	{
	private T _value;

	#!/bin/bash
	# vim: ai ts=2 sw=2 et sts=2 ft=sh
	#
	# macOS Desktop Finder Files Toggle
	#
	# Toggle the use of Finder to display the contents of the Desktop folder as
	# icons on the macOS desktop. Hides or Shows all Finder files icons on the
	# Desktop.
	#
	# https://ss64.com/osx/defaults.html

	#!/usr/bin/env bash
	# -----
	# Read domains from a file and test HTTP GET request.
	#

	set -o errtrace
	set -o pipefail
	set -o errexit
	set -o nounset