vitalymak

// Difference between a pointer and a reference in C++
// http://cpp.sh/64ahf
#include <iostream>

int main()
{
  int a = 123;
  int b = 456;
  
  int & ra = a; // reference, also "int &ra = a;

vitalymak

find . -name *.jpg # find all *.jpg files
find . -type f -name '*.*' | sed 's|.*\.||' | sort -u # find all unique file extensions
find . -type f ! -name "*.*" # find all files without extensions
find . -type f ! -name "*.*" | sed 's!.*/!!' | sort -u # find all unique file names without extension

vitalymak

atime() {
	local times=()
	local start end total
	
	for i in {1..10}; do
		start=$(/usr/local/opt/coreutils/libexec/gnubin/date +%s%N)
		"$@" >/dev/null 2>&1
		end=$(/usr/local/opt/coreutils/libexec/gnubin/date +%s%N)
		total=$(expr $end - $start)
		times+=( $total )

vitalymak

ps -p <PID> -wwwE

# or

ps -p <PID> -wwwe

# more info https://serverfault.com/questions/66363/environment-variables-of-a-running-process-on-unix

vitalymak

sublime /Applications/VirtualBox.app/Contents/Resources/VirtualBoxVM.app/Contents/Info.plist

Insert between LSCanProvideIMVideoDataSource and NSHighResolutionCapable:

<key>LSUIElement</key> <string>1</string>

Source: https://forums.virtualbox.org/viewtopic.php?f=8&t=21676#p305585

vitalymak

adb tcpip 5555 && adb connect 192.168.1.123

http://stackoverflow.com/questions/14357705/adb-over-wireless

With USB cable connected, port 5555 opened across all involved firewalls and debug mode enabled

adb tcpip 5555

vitalymak

errors = [];

var promises = [
    Promise.reject(new Error('Rejects immediately!')),
    new Promise((resolve) => setTimeout(resolve, 5000)).then(() => 'Resolved after 5 seconds!')
];

promises = promises.map((promise, i) => promise.catch(error => {
    errors[i] = error;
}));

vitalymak

git push origin local-name:remote-name

vitalymak

# 1) first install coreutils
brew install coreutils

# 2) but!!! let them do not replace internal macOS utils by modifying PATH check your ~/.bash_profile
# that you include brew sbin & coreutils AFTER internal /usr/bin etc.
export PATH=$PATH:/usr/local/sbin # but NOT!!!: export PATH=/usr/local/sbin:$PATH
export PATH=$PATH:/usr/local/opt/coreutils/libexec/gnubin

# 3) add it to your ~/.bash_profile
function dir_sizes {

vitalymak

#!/usr/bin/env bash

. ~/.nvm/nvm.sh

nvm install 4.6.2 >/dev/null 2>&1
nvm install 6.9.1 >/dev/null 2>&1

echo 'console.log("Forked child: " + process.version)' > to-fork.js

# prints v6.9.1