Pablo Ramírez perrefe

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Using Meld merging tool on Mac

There are two ways of installing meld on osx (May 2023), using brew and .dmg package (from @yousseb). Since I found https://yousseb.github.io/meld/, I've installed it with .dmg package, but having macOS Ventura Version 13.4 (22F66) in place, it's not even starting for me. So I tried brew installation, and the application is working as expected, including symlink to start it from the terminal.

Using brew formulae: https://formulae.brew.sh/cask/meld

brew install --cask meld

# set meld as your default git mergetool

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

El Capitan OSX Vagrant port forwarding rules to use privileged ports 80 and 443

Due to the OSX limitations in ports below 1024, in order to use them without running as root the virtualbox headless you can do the following workaround, (remember the command ipfw is deprecated on El Capitan)

In the Vagrant file use ports over 1024, for instance change 80 and 443 to 8080 and 8043.

  # Apache
  config.vm.network "forwarded_port", guest: 80, host: 8080

	package de.devsurf.html.tail;

	import java.io.IOException;
	import java.util.Date;
	import java.util.Set;
	import java.util.concurrent.CopyOnWriteArraySet;
	import java.util.concurrent.Executors;
	import java.util.concurrent.ScheduledExecutorService;
	import java.util.concurrent.TimeUnit;

	package org.baeldung.web.hateoas;

	import javax.servlet.http.HttpServletResponse;

	import org.springframework.context.ApplicationListener;
	import org.springframework.stereotype.Component;
	import org.springframework.web.util.UriComponentsBuilder;

	import com.google.common.base.Preconditions;

	if (!Date.prototype.toISOString) {
	Date.prototype.toISOString = function () {
	function pad(n) { return n < 10 ? '0' + n : n; }
	function ms(n) { return n < 10 ? '00'+ n : n < 100 ? '0' + n : n }
	return this.getFullYear() + '-' +
	pad(this.getMonth() + 1) + '-' +
	pad(this.getDate()) + 'T' +
	pad(this.getHours()) + ':' +
	pad(this.getMinutes()) + ':' +
	pad(this.getSeconds()) + '.' +

	#!/bin/bash

	# Origianl version : http://www.keepthingssimple.net/2012/10/creating-requests-per-time-graph-from-nginx-or-apache-access-log/
	# This version is a port to Mac OSX
	# dreampuf (http://huangx.in)

	# useage :
	# graphit.sh logfile.log
	# open result-2013-06-04.png

	input {
	## WebLogic Server Log
	file {
	type => "weblogic"
	path => [ "/var/log/weblogic/domain/managedserver.log" ]
	codec => multiline {
	pattern => "^####"
	negate => true
	what => previous
	}

	filter {
	## WebLogic Server Http Access Log
	if [type] == "weblogic-access" {
	grok {
	match => [ "message", "%{IP:client} - - \[(?<timestamp>%{MONTHDAY}[./-]%{MONTH}[./-]%{YEAR}:%{TIME}\s+%{ISO8601_TIMEZONE})] \"%{WORD:verb} %{URIPATHPARAM:uri}\s+HTTP.+?\" %{NUMBER:status} %{NUMBER:response_time}" ]
	}
	date {
	match => [ "timestamp" , "dd/MMM/yyyy:HH:mm:ss Z" ]
	}
	}