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@ssilva
ssilva / DisableEnableNetworkAdapter.ps1
Created Nov 23, 2012
How to disable & enable a network adapter on Windows with PowerShell
View DisableEnableNetworkAdapter.ps1
# Get the network adapter object
$adapter = Get-WmiObject -Class Win32_NetworkAdapter |
Where-Object {$_.Name -eq "TP-LINK Wireless USB Adapter"}
# Disable it
Write-Host -nonew "Disabling $($adapter.Name)... ";
$result = $adapter.Disable()
if ($result.ReturnValue -eq -0) {
Write-Host "Success.";
} else {
View .vimrc
execute pathogen#infect()
"execute pathogen#helptags()
" Suggested Pathogen plugins
" https://github.com/tpope/vim-commentary.git
" https://github.com/tpope/vim-obsession.git
" https://github.com/tpope/vim-sensible.git
" https://github.com/tpope/vim-markdown.git
" https://github.com/itchyny/lightline.vim
" https://github.com/terryma/vim-multiple-cursors.git
" https://github.com/mhinz/vim-signify
View bootstrap-vim.sh
#!/bin/bash
# Simple, ad-hoc script to quickly bootstrap a fresh Vim install.
echo -n "This will overwrite your .vimrc and plugins. Do you wish to continue [y/N]? "
read answer
if ! echo "$answer" | grep -iq "^y"; then
exit
fi
View aws-s3-bucket-policy.json
{
"Version":"2012-10-17",
"Statement":[{
"Sid":"PublicReadGetObject",
"Effect":"Allow",
"Principal": "*",
"Action":["s3:GetObject"],
"Resource":["arn:aws:s3:::example.com/*"
]
}
View tricks-and-tips.md

Command-line

Sum of numbers

Pipe to awk '{s+=$1} END {print s}' or paste -s -d+ - | bc (here paste joins the numbers into one line)

vim

  • { extends the selection until the next empty line

Macros

@ssilva
ssilva / coding-style.rst
Created Sep 4, 2017
Linux kernel coding style
View coding-style.rst

Linux kernel coding style

This is a short document describing the preferred coding style for the linux kernel. Coding style is very personal, and I won't force my views on anybody, but this is what goes for anything that I have to be able to maintain, and I'd prefer it for most other things too. Please at least consider the points made here.

@ssilva
ssilva / main.c
Last active Sep 12, 2017
msgpack neovim c client proof of concept
View main.c
#include <stdio.h>
#include <unistd.h>
#include <sys/socket.h>
#include <msgpack.h>
/*
* $ NVIM_LISTEN_ADDRESS=127.0.0.1:8888 nvim
*
*/
View postgres-table-bloat.md

In Postgres, each row has a system column xmin which holds the ID of the first transaction to have visibility over that row. Conversely, the xmax system column holds the ID of last trasaction to have visibility over that row.

DROP TABLE IF EXISTS users;
CREATE TABLE users (name varchar(80)) WITH OIDS;
INSERT INTO users VALUES ('root');
SELECT oid, xmin, xmax, name FROM users;
@ssilva
ssilva / disassembler.c
Last active Jul 17, 2018
8080 emulation
View disassembler.c
#include <stdlib.h>
#include <stdio.h>
// Started from http://emulator101.com/
int disassemble_op(unsigned char *codebuffer, int pc)
{
unsigned char *code = &codebuffer[pc];
int opbytes = 1;
View gameboy_opcodes.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Gameboy (LR35902) OPCODES</title>
<meta http-equiv="content-type" content="text/html; charset=windows-1250">
<style type="text/css"> <!--
table.withborder {
border-width: 1px;
border-style: solid;
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