geekpete

How to

<details>
  <summary>see this long example - click to expand </summary>
  
  You can use regular markdown formatting inside your collapsed section.
  
  ### Heading
  1. Foo
 2. Bar

geekpete

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

geekpete

### this is how file .restic.env is
export RESTIC_REPOSITORY="b2:XXXXXXX:YYYYYY"
export B2_ACCOUNT_ID="<a/c id>"
export B2_ACCOUNT_KEY="<a/c key"
export RESTIC_PASSWORD_FILE="$HOME/<a dropbox folder>/restic.pwd"
export RESTIC_INCLUDE_FILE="$HOME/<a dropbox folder>/restic.include"
export RESTIC_EXCLUDE_FILE="$HOME/<a dropbox folder>/restic.exclude"
export RESTIC_LOG_DIR="$HOME/.restic/log/"

### file: restic.pwd

geekpete

#!/bin/bash

exec > >(tee -a "/tmp/display-switcher.log") 2>&1

# NOTE: This requires GNU getopt.  On Mac OS X and FreeBSD, you have to install this
# separately; see below.

usage() {
  cat << HELP >&2
Usage: $0 [option ...] {profile}

geekpete

def unicodetoascii(text):

    TEXT = (text.
    		replace('\\xe2\\x80\\x99', "'").
            replace('\\xc3\\xa9', 'e').
            replace('\\xe2\\x80\\x90', '-').
            replace('\\xe2\\x80\\x91', '-').
            replace('\\xe2\\x80\\x92', '-').
            replace('\\xe2\\x80\\x93', '-').
            replace('\\xe2\\x80\\x94', '-').

geekpete

# BM25F Model

def bm25(idf, tf, fl, avgfl, B, K1):
    # idf - inverse document frequency
    # tf - term frequency in the current document
    # fl - field length in the current document
    # avgfl - average field length across documents in collection
    # B, K1 - free paramters

    return idf * ((tf * (K1 + 1)) / (tf + K1 * (1 - B + B * (fl / avgfl))))

geekpete

In a zoom?

xdotool search --name "Zoom Meeting ID:"

This will exit non-zero if no meeting matching this name is found. "Zoom Meeting ID:"

This window exists regardless of sharing or not sharing, in my tests.

geekpete

Problem:  We have a log line that includes a perl class that we want to log the class 
and method in their respected fields.  An example class and method in perl:

Animal::Dog::bark

In this example, "bark" is the method.  "Animal::Dog" is the class.

After some searching and hacking, I found a solution that works with Logstash 1.4.2

Assume the input is "Animal::Dog::bark".

geekpete

source 'https://rubygems.org'
# Specify your gem's dependencies in logstash-mass_effect.gemspec

gem "logstash-core", :path => "./logstash/logstash-core"
gem "logstash-core-event-java", :path => "./logstash/logstash-core-event-java"
gem "logstash-core-plugin-api", :path => "./logstash/logstash-core-plugin-api"
gem "logstash-filter-grok", :path => "./logstash-filter-grok"
gem "logstash-patterns-core", :path => "./logstash-patterns-core"
gem "benchmark-ips"

geekpete

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application: