a1ip

Tar Usage / Cheat Sheet

Compress a file or directory

e.g: tar -czvf name-of-archive.tar.gz /path/to/directory-or-file

• -c: Create an archive.
• -z: Compress the archive with gzip.
• -v: makes tar talk a lot. Verbose output shows you all the files being archived and much.
• -f: Allows you to specify the filename of the archive.

a1ip

ASCI art characters for creating diagrams

Characters:

Single line

• ASCII code 191 = ┐ ( Box drawing character single line upper right corner )
• ASCII code 192 = └ ( Box drawing character single line lower left corner )
• ASCII code 193 = ┴ ( Box drawing character single line horizontal and up )
• ASCII code 194 = ┬ ( Box drawing character single line horizontal down )

a1ip

Ошибка:
.\venv\Scripts\activate : Невозможно загрузить файл C:\path\venv\Scripts\activate.ps1, так как выполнение сценариев отключено в этой системе. 
Для получения дополнительных сведений см. about_Execution_Policies по адресу http://go.microsoft.com/fwlink/?LinkID=135170.
строка:1 знак:1
.\venv\Scripts\activate
~~~~~~~~~~~~~~~~~~~~~~~
CategoryInfo          : Ошибка безопасности: (:) [], PSSecurityException
FullyQualifiedErrorId : UnauthorizedAccess

Решение проблемы:

a1ip

Inspired by dannyfritz/commit-message-emoji

See also gitmoji.

Commit type	Emoji
Initial commit	🎉 :tada:
Version tag	🔖 :bookmark:
New feature	✨ :sparkles:
Bugfix	🐛 :bug:

a1ip

How to use:

./wordle.sh

Or try the unlimit mode:

a1ip

JavaScript Bitwise Hacks

It assumes the highest positive signed 32-bit float value for numbers. In other words, 2147483647 (or 0x7FFFFFFF or 2^31-1).

Table of Contents

1. Toggle switch
2. Variable swap
3. Math.pow
4. Determine if an integer is a power of 2
5. Round up to the next highest power of 2

a1ip

This flow (and associated circuits/hardware) is designed to allow Node-RED to pass messages via radio waves in the same way as it passes messages via MQTT, using commonly-available, inexpensive handheld radios and the Raspberry Pi. The flow has been tested using Baofeng, Wouxun, and Quansheng handheld ham radios. In short, the goal is to allow packet-like transmissions between Node-RED systems over miles, while keeping the hardware costs down (or free for those hams who have surplus Baofengs hanging around). This could be used for a backup to MQTT when the Wifi is unreliable, or simply as a long-distance and network-agnostic message channel.

Prerequisites: Software

First, we need PulseAudio to make and receive sounds with our USB soundcard:

sudo apt-get install pulseaudio -y

a1ip

Webpack & Tailwind CSS Setup

Create your package.json

npm init -y

Create your src folder

Create a folder called src and add an empty index.js file. The code that webpack compiles goes in here including any Javascript modules and the main Tailwind file.

a1ip

Default

Powerlevel10k

a1ip

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example