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Kailash Nadh knadh

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knadh / numbers-to-words.go
Created June 12, 2022 08:22
Simple algorithm for converting numbers to English words (Golang)
package main
import (
"fmt"
)
var (
ones = []string{
"zero", "one", "two", "three", "four",
"five", "six", "seven", "eight", "nine",
@knadh
knadh / unix-to-time.go
Created July 1, 2022 07:36
Convert a unix (milli) timestamp to year, month, day ... without using the standard library
package main
import (
"fmt"
"time"
)
func main() {
fmt.Println(unixToTime(time.Now().UnixMilli()))
}
@knadh
knadh / zsh-elapsed-time.md
Last active April 20, 2024 06:35
Elapsed and execution time for commands in ZSH

Elapsed and execution time display for commands in ZSH

Append this to your ~/.zshrc file.

function preexec() {
 timer=$(($(date +%s%0N)/1000000))
@knadh
knadh / parse-database-url-dsn-bash.sh
Created August 21, 2021 06:26
#!/usr/bin/env bash
DATABASE_URL="postgres://MyPostgresUser:MyPostgresPassword@192.168.0.1:5432/MyPostgresDB"
# `cut` is used to cut out the separators (:, @, /) that come matched with the groups.
DATABASE_USER=$(echo $DATABASE_URL | grep -oP "postgres://\K(.+?):" | cut -d: -f1)
DATABASE_PASSWORD=$(echo $DATABASE_URL | grep -oP "postgres://.*:\K(.+?)@" | cut -d@ -f1)
DATABASE_HOST=$(echo $DATABASE_URL | grep -oP "postgres://.*@\K(.+?):" | cut -d: -f1)
DATABASE_PORT=$(echo $DATABASE_URL | grep -oP "postgres://.*@.*:\K(\d+)/" | cut -d/ -f1)