payam-int

CPU Usage :

(1 - avg(irate(node_cpu_seconds_total{mode="idle"}[10m])) by (instance)) * 100

Memory Usage :

100 * (1 - ((avg_over_time(node_memory_MemFree_bytes[10m]) + avg_over_time(node_memory_Cached_bytes[10m]) + avg_over_time(node_memory_Buffers_bytes[10m])) / avg_over_time(node_memory_MemTotal_bytes[10m])))

R3V1Z3

Convert snake_case to camelCase in VS Code

• Press CTRL-H ( ⌥⌘F on Mac ).
• Press ALT-R ( ⌥⌘R on Mac ).
• Type _([a-zA-Z]).
• Press TAB and type $1.
• Press ALT-ENTER ( ⌥ENTER on Mac ).
• Press F1 and type upper, then press ENTER.
• Press CTRL-ALT-ENTER ( ⌥ENTER on Mac ).

1duo

Download CMake from: https://cmake.org/download/

wget https://cmake.org/files/v3.12/cmake-3.12.3.tar.gz

Compile from source and install

tar zxvf cmake-3.*

hassansin

package main

import (
	"errors"
	"fmt"
	"math/rand"
	"net/http"
	"sync"
	"time"

NEJmark

# -*- coding: utf-8 -*-
import codecs
import struct

class Codec(codecs.Codec):
    def encode(self,input,errors='strict'):
        u'''
        ## for example:
        ##    1. u'築'= \u7bc9, 7bc9(16 進位) = 31689(10進位)
        ##    2. '築'= '\xbfv'='\xbf\x76'('v'=='\x76'), bf76(16 進位) = 49014

g-dormoy

image: golang:1.7
before_script:
    - export GO_PROJECT_PATH="$GOPATH/src/git.int.rtblw.com/$CI_PROJECT_NAMESPACE"
    - echo $GO_PROJECT_PATH
    - mkdir -p $GO_PROJECT_PATH
    - ln -s $(pwd) $GO_PROJECT_PATH
    - export GO_PROJECT_PATH="$GO_PROJECT_PATH/$CI_PROJECT_NAME"
    - echo $GO_PROJECT_PATH
    - cd $GO_PROJECT_PATH
stages:

Nydhal

#include <iostream>
using namespace std;

class Queue { // Class definition
private: //private members can only be accessed in the class
	int queue_size;
protected: // protected members can ba accessed in derived classes
	int* buffer;		// pointer to first element of array
	int front;			// used for removing an element of array
	int rear;			  // user for adding an element into queue

rpherrera

#!/bin/bash

# stripping double quotes with sed
aws ecr describe-repositories | jq '.repositories[].repositoryName' | sed s/\"//g

# stripping double quotes with tr
aws ecr describe-repositories | jq '.repositories[].repositoryName' | tr -d '"'

Khoulaiz

Here are several different ways to test a TCP port without telnet.

BASH (man page)

$ cat < /dev/tcp/127.0.0.1/22
SSH-2.0-OpenSSH_5.3
^C

$ cat &lt; /dev/tcp/127.0.0.1/23

hmartiro

ZeroMQ vs Redis

This document is research for the selection of a communication platform for robot-net.

Goal

The purpose of this component is to enable rapid, reliable, and elegant communication between the various nodes of the network, including controllers, sensors, and actuators (robot drivers). It will act as the core of robot-net to create a standardized infrastructure for robot control.

Requirements: