Barbu Paul - Gheorghe paulbarbu

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

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)

To remove a submodule you need to:

Delete the relevant section from the .gitmodules file.
Stage the .gitmodules changes git add .gitmodules
Delete the relevant section from .git/config.
Run git rm --cached path_to_submodule (no trailing slash).
Run rm -rf .git/modules/path_to_submodule (no trailing slash).
Commit git commit -m "Removed submodule "
Delete the now untracked submodule files rm -rf path_to_submodule

	from multiprocessing import Pool


	def fib(n):
	if n <= 1:
	return n
	else:
	return fib(n - 1) + fib(n - 2)

	gifify() {
	if [[ -n "$1" ]]; then
	if [[ $2 == '--good' ]]; then
	ffmpeg -i $1 -r 10 -vcodec png out-static-%05d.png
	time convert -verbose +dither -layers Optimize -resize 600x600\> out-static*.png GIF:- \| gifsicle --colors 128 --delay=5 --loop --optimize=3 --multifile - > $1.gif
	rm out-static*.png
	else
	ffmpeg -i $1 -s 600x400 -pix_fmt rgb24 -r 10 -f gif - \| gifsicle --optimize=3 --delay=3 > $1.gif
	fi
	else

	-- Two dashes start a one-line comment.

	--[[
	Adding two ['s and ]'s makes it a
	multi-line comment.
	--]]

	----------------------------------------------------
	-- 1. Variables and flow control.
	----------------------------------------------------

	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	#include <sys/types.h>
	#include <sys/socket.h>
	#include <netdb.h>
	#include <unistd.h>
	#include <fcntl.h>
	#include <sys/epoll.h>
	#include <errno.h>

	# Simple No-ip.com Dynamic DNS Updater
	#
	# By Nathan Giesbrecht (http://nathangiesbrecht.com)
	#
	# 1) Install binary as described in no-ip.com's source file (assuming results in /usr/local/bin)
	# 2) Run sudo /usr/local/bin/noip2 -C to generate configuration file
	# 3) Copy this file noip2.service to /etc/systemd/system/
	# 4) Execute `sudo systemctl daemon-reload`
	# 5) Execute `sudo systemctl enable noip2`
	# 6) Execute `sudo systemctl start noip2`

	module Main
	where

	main = undefined