Nathan Kallman kallmanation

Setup

This leverages the arbitrary-precision command line calculator bc

Just add the function c (or similarly short) to your .bashrc:

c() { echo "$@" | bc -l; }

It's an often used pattern when setting up to first make a directory with mkdir and then immediately moving into the new directory with cd.

mkdir my_dir
cd my_dir

	#!/bin/sh

	# Copying dangerous commands from the internet and forgetting to trim the `$` off the start?
	# Getting all sorts of `# -bash: $: command not found` errors?
	# This script is for you!
	# `$ command` will now ask for confirmation before executing the gum you scraped off of stackoverflow!

	echo "You are about to run the command:"
	echo "$@"
	read -n 1 -p "Do you want to continue? [yN]: " answer

	#!/bin/bash

	catdeck() {
	if [[ "$#" -eq 0 ]]; then
	(>&2 echo "usage: $0 final_file_name.catdeck")
	exit 1
	fi

	OUTPUTFILE=$(echo "$1" \| sed 's/\.catdeck//')
	echo -n "" > "$OUTPUTFILE"