Discover gists

Setup sendmail

Prefix all commands with 'sudo'

Install prerequisites

$ apt-get install sendmail mailutils

Configure hosts file correctly:

Linux Desktop on Apple Silicon in Practice

I bought M1 MacBook Air. It is the fastest computer I have, and I have been a GNOME/GNU/Linux user for long time. It is obvious conclusion that I need practical Linux desktop environment on Apple Silicon.

Fortunately, Linux already works on Apple Silicon/M1. But how practical is it?

Two native ports exist.

Add Git Branch Name to Terminal Prompt (Linux/Mac)

Open ~/.bash_profile in your favorite editor and add the following content to the bottom.

# Git branch in prompt.

parse_git_branch() {

	KEYMAPOPTS="us us"
	HOSTNAMEOPTS="-n alpine"
	INTERFACESOPTS="auto lo
	iface lo inet loopback

	auto eth0
	iface eth0 inet dhcp
	hostname alpine
	"
	TIMEZONEOPTS="-z UTC"

	#!/bin/sh

	log() {
	format="$1"; shift
	# shellcheck disable=SC2059
	>&2 printf "$format\n" "$@"
	}

	usage() {
	>&2 cat <<EOF

	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>Filter, Map & Reduce</title>
	</head>


	.
	..
	........
	@
	*
	.
	..*
	ðŸŽ

	pm disable-user --user 0 com.caf.fmradio
	pm disable-user --user 0 com.coloros.activation
	pm disable-user --user 0 com.coloros.activation.overlay.common
	pm disable-user --user 0 com.coloros.alarmclock
	pm disable-user --user 0 com.coloros.appmanager
	pm disable-user --user 0 com.coloros.assistantscreen
	pm disable-user --user 0 com.coloros.athena
	pm disable-user --user 0 com.coloros.avastofferwall
	pm disable-user --user 0 com.coloros.backuprestore
	pm disable-user --user 0 com.coloros.backuprestore.remoteservice

	#!/usr/bin/env bash
	# 2017-11-20T09:57:46.101+0000 1511171866101 65 Flat xDrip-DexcomG5
	LINE=$(curl "https://acron-nightscout.herokuapp.com/api/v1/entries" 2> /dev/null \| head -n1 )
	TIME_THEN=$(echo $LINE \| awk '{ print $2 }' \| cut -c -10)
	TIME_NOW=$(date +%s)
	MMOL=$(echo $LINE \| awk '{ print $3 }')
	ARROW=$(echo $LINE \| awk '{ print $4 }')
	MINS_SINCE=$(echo "($TIME_NOW - ${TIME_THEN:-0}) / 60" \| bc \| xargs printf "%sm ago")
	case $ARROW in
	Flat) ARROW_SYM="\\u2192"

	const byteToHex = (byte) => {
	const key = '0123456789abcdef'
	let bytes = new Uint8Array(byte)
	let newHex = ''
	let currentChar = 0
	for (let i=0; i<bytes.length; i++) { // Go over each 8-bit byte
	currentChar = (bytes[i] >> 4) // First 4-bits for first hex char
	newHex += key[currentChar] // Add first hex char to string
	currentChar = (bytes[i] & 15) // Erase first 4-bits, get last 4-bits for second hex char
	newHex += key[currentChar] // Add second hex char to string