planetceres

Restart/reset USB kernel module in Ubuntu 18.04 without rebooting

Restart USB ports after a power overdraw (error -110). Unplug all devices prior to running script.

References:

• https://davidjb.com/blog/2012/06/restartreset-usb-in-ubuntu-12-04-without-rebooting/
• https://ubuntuforums.org/showthread.php?t=1460790&p=9162799#post9162799

so0k

Kubectl output options

Let's look at some basic kubectl output options.

Our intention is to list nodes (with their AWS InstanceId) and Pods (sorted by node).

We can start with:

kubectl get no

meeuw

# MOVED TO: https://github.com/meeuw/injectinput

#!/usr/bin/python3
import evdev
import sys

upper = { '!': '1', '@': '2', '#': '3', '$': '4', '%': '5', '^': '6', '&': '7', '*': '8', '(': '9', ')': '0' }

with evdev.UInput() as ui:
    escape = False

danidiaz

	  ---			-----------------			----
	  Map			Quick Explanation			Link
	  ---			-----------------			----
<	 <F1>	Causes Netrw to issue help
	 <cr>	Netrw will enter the directory or read the file      |netrw-cr|
	 <del>	Netrw will attempt to remove the file/directory      |netrw-del|
	 <c-h>	Edit file hiding list                                |netrw-ctrl-h|
	 <c-l>	Causes Netrw to refresh the directory listing        |netrw-ctrl-l|
	 <c-r>	Browse using a gvim server                           |netrw-ctrl-r|
	 <c-tab> Shrink/expand a netrw/explore window                |netrw-c-tab|

oneohthree

echo "$STRING" | iconv -t ascii//TRANSLIT | sed -r s/[^a-zA-Z0-9]+/-/g | sed -r s/^-+\|-+$//g | tr A-Z a-z

Kartones

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

todgru

#!/bin/sh
#
# Setup a work space called `work` with two windows
# first window has 3 panes. 
# The first pane set at 65%, split horizontally, set to api root and running vim
# pane 2 is split at 25% and running redis-server 
# pane 3 is set to api root and bash prompt.
# note: `api` aliased to `cd ~/path/to/work`
#
session="work"

josefnpat

#!/usr/bin/php
<?php

$xml = simplexml_load_file('http://musicforprogramming.net/rss.php');

$songs = array();

foreach($xml->channel->item as $item){
  $songs[] = (string)$item->comments;
}

andreyvit

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a