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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

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

The Best of the Best Practices (BOBP) Guide for Python

A "Best of the Best Practices" (BOBP) guide to developing in Python.

In General

Values

"Build tools for others that you want to be built for you." - Kenneth Reitz
"Simplicity is alway better than functionality." - Pieter Hintjens

People

`:bowtie:`	😄 `:smile:`	😆 `:laughing:`
😊 `:blush:`	😃 `:smiley:`	☺️ `:relaxed:`
😏 `:smirk:`	😍 `:heart_eyes:`	😘 `:kissing_heart:`
😚 `:kissing_closed_eyes:`	😳 `:flushed:`	😌 `:relieved:`
😆 `:satisfied:`	😁 `:grin:`	😉 `:wink:`
😜 `:stuck_out_tongue_winking_eye:`	😝 `:stuck_out_tongue_closed_eyes:`	😀 `:grinning:`
😗 `:kissing:`	😙 `:kissing_smiling_eyes:`	😛 `:stuck_out_tongue:`

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

Vim cheat sheet

Starting Vim

vim [file1] [file2] ...

Redhawk on Raspberry Pi

One option for compiling Redhawk for the Raspberry Pi is using QEMU on a host to compile it into the image before loading on the rpi hardware - this takes advantage of the superior hardware on your host to decrease compile time. These instructions verified for host system Ubuntu 16.04, Raspberry Pi image Raspbian Stretch 2017-09-07, and Redhawk 2.0.7.

It is important to note that Redhawk is only officially supported on CentOS 6 and 7 and therefore any time you try to compile it for other OS's it's possible (likely on systems like Ubuntu/Debian) that you'll have issues with newer versions of dependencies, the most likely offenders in the past have been:

Library	CentOS 6.9	CentOS 7.4	Ubuntu 16.04	Debian 9.2	Raspbian Stretch	Fedora 28
gcc	4.4.7	4.8.5	5.4.0	6.3.0	6.3.0	8.1.1
libstdc++	4.4.7	4.8.5	5.4.0	6.3.0	6.3.0	8.1.1

	package main

	import (
	"crypto/tls"
	"crypto/x509"
	"fmt"
	"io"
	"log"
	)

	set(LIBFOO_TAR_HEADERS
	"${CMAKE_CURRENT_BINARY_DIR}/include/foo/foo.h"
	"${CMAKE_CURRENT_BINARY_DIR}/include/foo/foo_utils.h"
	)

	add_custom_command(OUTPUT ${LIBFOO_TAR_HEADERS}
	COMMAND ${CMAKE_COMMAND} -E tar xzf "${CMAKE_CURRENT_SOURCE_DIR}/libfoo/foo.tar"
	COMMAND ${CMAKE_COMMAND} -E touch ${LIBFOO_TAR_HEADERS}
	WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/include/foo"
	DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/libfoo/foo.tar"

	#!/bin/bash -xeu

	# let host and guests talk to each other over macvlan
	# configures a macvlan interface on the hypervisor
	# run this on the hypervisor (e.g. in /etc/rc.local)
	# made for IPv4; need modification for IPv6
	# meant for a simple network setup with only eth0,
	# and a static (manual) ip config
	# Evert Mouw, 2013