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📈 Create simple graph of CPU temperature using RRDTool

RRDtool is the OpenSource industry standard, high performance data logging and graphing system for time series data. RRDtool can be easily integrated in shell scripts, perl, python, ruby, lua or tcl applications.

more info:

RRDtool refers to Round Robin Database tool. Round robin is a technique that works with a fixed amount of data, and a pointer to the current element. Think of a circle with some dots plotted on the edge. These dots are the places where data can be stored. Draw an arrow from the center of the circle to one of the dots; this is the pointer. When the current data is read or written, the pointer moves to the next element. As we are on a circle there is neither a beginning nor an end, you can go on and on and on. After a wh

Bash script to get status of PoE Switch Zyxel GS1200-5HPv2

source: github: https://github.com/cretl/gs1200hp-ctrl

Prerequisities

make sure you have current firmware: https://www.zyxel.com/global/en/support/download?model=gs1200-5hp-v2
Firmware: V2.00(ABKN.2)C0 (release date: November 09, 2022)
- Checksum: MD5: 674AA0C4DBC7ACE09F4749036DBA742D & SHA1: 3D62A5C2582A9FDBCE77A1C147222CFF2F1CF58A

Note: it was originally posted as comment under this gist: https://gist.github.com/dgcoffman/ec5014675ddfbd7b68929344234d9532

If someone wants to very quickly add such a check for useEffect without integrating custom eslint plugin… I created custom config for existing 'no-restricted-syntax' rule for inspiration:

'no-restricted-syntax': [
// 1. case:
  {
    message: 'useEffect: please use named function instead of arrow function',

RPi 5 notes

DietPi

Installed packages (2024-01-23):

Installed packages (2024-01-23)

Find what JavaScript variables are leaking into the global scope

All rights to Matteo: https://mmazzarolo.com/blog/2022-02-14-find-what-javascript-variables-are-leaking-into-the-global-scope/ https://gist.github.com/mmazzarolo/4cc6ab1b3f176874336bf1ceb7dff6ef#file-runtime-globals-checker-js

/**
 * RuntimeGlobalsChecker
 * 
 * You can use this utility to quickly check what variables have been added (or

Portainer update

Useful resources: https://hub.docker.com/r/portainer/portainer - DEPRECATED ❗️ https://hub.docker.com/r/portainer/portainer-ce - ✅

before update

sudo docker stats - check running containers. Find portainer

Review your Apple warranty status and eligibility to purchase additional AppleCare coverage.)

https://checkcoverage.apple.com

TestM - Check phone & Report

https://apps.apple.com/us/app/testm-check-phone-report/id124237144

Monitor/display tests

http://chenyufei.info/p/screen/

Unifi AP useful commands

tested on U6-Lite using SSH:

log in to AP: $ ssh ubnt@<IP>
default username & password: ubnt & ubnt

	const isUseEffect = (node) => node.callee.name === 'useEffect';

	const argumentIsArrowFunction = (node) => node.arguments[0].type === 'ArrowFunctionExpression';

	const effectBodyIsSingleFunction = (node) => {
	const { body } = node.arguments[0];

	// It's a single unwrapped function call:
	// `useEffect(() => theNameOfAFunction(), []);`
	if (body.type === 'CallExpression') {