JPvRiel

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

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Syntax

${varName/Pattern/Replacement}

Given a variable

$ val="test"

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# Python script to test ssl via ssllabs service
# - input: space or newline delimited set of hostnames to test
# - process: sends request, polls till results are complete
# - output: saves html page
# - output: prints summary results per site in csv
# - output format: <fqdn/hostname>,<http status code>,<overall rating>,<certficate score %>,<protocol support score %>,<key exchange score %>,<cipher strength score %>

# python libs to use
import csv
from lxml import html

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#!/usr/bin/env bash
if [ -z "$VIRTUAL_ENV" ] || [ "$VIRTUAL_ENV" -ne "/home/a211278l/bin/python-venvs/docker" ]; then
  source ~/bin/python-venvs/docker/bin/activate
fi
sudo -E "$(which docker-compose)" $@
deactivate

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Overview

W window has a _NET_WM_PID property set by the applicaiton. To really validate if the application has set this correctly is more work (see reference).

Simple Example

Run command and click the window

$ xprop _NET_WM_PID

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Given a working directory and a folder c with encrypted PDFs, use qpdf, basename and a bash loop:

for f in c/*.pdf; do qpdf --password=<password> --decrypt $f "$(basename -s .pdf $f).pdf"; done

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Synopsis

Boot failure was caused by installing spice-guest-tools which, if you read details about it, also includes the QXL driver and the install broke my Windows 10 build 17134 guest somehow. This occured on Ubuntu 16.04 LTS with QEMU emulator version 2.5.0.

Error

BSOD with "page fault in nonpaged area" occurs after installing spice-guest-tools-latest.exe. It possibly clobbers other stable/good versions of drivers.

Automatic boot repair fails. After going through advanced options and getting to a command prompt, inspect the boot repair logs:

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Show top 10 processes by resident memory set size

ps -eo pid,user,rsz,vsz,comm,args --sort -rss --cols 160 | head -n11

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inspect_raid.sh

A bash script that collects some useful commands to check Linux MD software arrays and component devices for some issues, e.g.

• RAID component device has a SMART warnings or errors.
• A RAID with HDD and SSD mixed doesn't have the HDD components set to write-mostly or the SSD is set to write-mostly.

It can also display info. Set env var SHOW_INFO='y' or anything else, e.g. 'n' (default) to just report issues.

Usage

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Merging

Merge master into branch

A good idea if upstream has had commits and, to catch up, you need to test your feature branch with changes from upstream included

git checkout feature
git pull origin master