smartwatermelon

# one-liner in Bash
$ target=3; for i in "flour:200" "sugar:100" "eggs:2"; do echo "${i%%:*}:$(( ${i##*:} * target ))"; done
flour:600
sugar:300
eggs:6

smartwatermelon

#!/usr/bin/env bash
set -eu -o pipefail

# Generate all permutations of a given string
# Usage: permutate "string"
permutate() {
    local string=$1
    local prefix=${2:-}
    local result=()
    local len=${#string}

smartwatermelon

$ newYearsDay(){ date -v "${1:-$(date +"%Y")}y" -v 01m -v 01d +"%A"; }
$ newYearsDay 2025
Wednesday
$ newYearsDay 2024
Monday
$ newYearsDay  # default value is current year
Wednesday

smartwatermelon

server {
    listen 443 ssl;
    server_name YOUR_TRANSMISSION_HOST_NAME;

    ssl_certificate /usr/local/etc/nginx/ssl/nginx.crt;
    ssl_certificate_key /usr/local/etc/nginx/ssl/nginx.key;
    # you should create a self-signed cert:
    # sudo mkdir -p /usr/local/etc/nginx/ssl
    # sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout /usr/local/etc/nginx/ssl/nginx.key -out /usr/local/etc/nginx/ssl/nginx.crt

smartwatermelon

#!/bin/bash -ex

# Do you have VPCs or other AWS network resources you just can't get rid of?
# Circular dependencies, ownership issues?
# This script will do its very best to murderize them for you. If it can't,
# it will tell you what permissions need to be added (assuming you can add
# permission polices to your AWS CLI user) or dependencies need to be manually
# deleted (e.g. route tables, ENIs, etc).

# Good luck.

smartwatermelon

#!/usr/bin/env bash
set -eu -o pipefail

# Define function to convert a number to English words
# this function is lifted from my countSelfChars solution from April 2, 2023:
#  https://gist.github.com/smartwatermelon/ab9b5886128e9120b1ad3deebb2f320f
function num_to_words {
  local ones=( '' one two three four five six seven eight nine )
  local tens=( '' '' twenty thirty forty fifty sixty seventy eighty ninety )
  local specials=( ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen )

smartwatermelon

#!/usr/bin/env bash
set -eu -o pipefail

TRIES=0
NUM="${RANDOM}" # 0-32767
read -p "Your guess: " GUESS
(( TRIES+=1 ))
while [ $GUESS -ne $NUM ]; do
	if [ $GUESS -lt $NUM ]; then
		echo "guess higher!"

smartwatermelon

#!/usr/bin/env bash
set -eu -o pipefail

isVowel(){
	CHAR=${1:0:1}
	if [[ "$CHAR" == *[AaEeIiOoUu]* ]]; then
		echo 0
	else
		echo 1
	fi

smartwatermelon

#!/usr/bin/env bash
set -eu -o pipefail

isPerfect() {
	NUM=$1
	SQRT=$( bc -l <<< "sqrt ($NUM)" )
	INT_SQRT=$( cut -d '.' -f 1 <<< "$SQRT" )
	SQ_INT_SQRT=$( bc -l <<< "$INT_SQRT ^ 2" )
	test $NUM -eq $SQ_INT_SQRT; echo $?
}

smartwatermelon

#!/usr/bin/env bash
set -eu -o pipefail

trimArray () {
	arrayName=$1[@]
	n=$2
	m=$3
	array=("${!arrayName}")
	
	echo -e "begin:\t[${array[@]}], $n, $m"