pavelsr

FROM alpine:latest
RUN echo '* * * * * echo "Hello world" 2>&1' > /etc/crontabs/root
CMD ["/usr/sbin/crond", "-f"]

pavelsr

docker inspect --format='{{.Name }} | {{range .NetworkSettings.Networks}}{{.MacAddress}} | {{.IPAddress}}{{end}} | {{.HostConfig.NetworkMode}}' $(docker ps -q)

pavelsr

#!/bin/sh
docker ps -n 2 --format "table {{.Names}}\t{{.Status}}\t{{.Networks}}\t{{.Ports}}"

pavelsr

#!/bin/bash
# run it with ./dev.sh
# Morbo: Solution of Can't create listen socket: Address already in use problem

APP=$1
START_PORT=3000
BUSY_PORTS=$(netstat -lntu | awk '{print $4}' | grep ':' | cut -d ":" -f 2 | sort -g | uniq | awk '$1>=$START_PORT')
echo $BUSY_PORTS

# while [[ ${BUSY_PORTS[*]} != "$port" ]]

pavelsr

BeagleBone

Карта используемых пинов

Если вы не можете зайти на веб-интерфейс и пин PWR не мигает (также через несколько секунд после включения должны замигать светодиоды USR2 и USR1/3) - проверьте мультиметром напряжение на пинах платы, соответствующие пинам VDD_3V3 и VDD_5V BeagleBone.

pavelsr

#!/usr/bin/perl

# Usage: perl autoconf.pl >> /usr/local/nagios/etc/servers/nginx.cfg
# /usr/local/nagios/etc/servers must be enabled as cfg_dir in /usr/local/nagios/etc/nagios.cfg

use Data::Dumper;
use feature 'say';
use Nagios::Object;

my @a = `grep server_name /etc/nginx/sites-enabled/* -RI`;

pavelsr

Postres cheatsheet

Magic words:

psql -U postgres

or if there is no postgres account for current user:

pavelsr

package Kayako;

use common::sense;
use Mojo::UserAgent;
use Digest::SHA qw(hmac_sha256_base64);
use XML::XML2JSON;
use utf8;
use Data::Dumper;

sub new {

pavelsr

package main;
use Mojo::Base -strict;
use Test::More;
use Test::Mojo;

{

  package MyApp::Controller::Users;
  use Mojo::Base 'Mojolicious::Controller';
 # use experimental 'signatures';

pavelsr

#include <WIEGAND26.h>
#include <PCATTACH.h>           // Pcint.h implementation, allows for >2 software interupts.
#include "Timer.h"

#define CARDFORMAT 1                    // 1=First and second parity bits stripped
#define R2ZERO          4 //DO
#define R2ONE           5 //D1  
#define SAMPLE_PERIOD 3 // sampling interval in ms. must be > data period
     
PCATTACH pcattach;