Stephen Doyle stevedoyle

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Octave CheatSheet

GNU Octave is a high-level interpreted language, primarily intended for numerical computations.
(via GNU Octave)

Hint: I also mad an octave docset for Dash: https://github.com/obstschale/octave-docset

Basics

Bash Shortcuts

Moving

command	description
ctrl + a	Goto BEGINNING of command line

Tabs and Windows

Function	Shortcut
New Tab	`⌘` + `T`
Close Tab or Window	`⌘` + `W` (same as many mac apps)
Go to Tab	`⌘` + `Number Key` (ie: `⌘2` is 2nd tab)
Go to Split Pane by Direction	`⌘` + `Option` + `Arrow Key`
Cycle iTerm Windows	`⌘` + `backtick` (true of all mac apps and works with desktops/mission control)

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Git Cheatsheet

Fetching and Pulling

Task	Command
Fetch for later merging	`git fetch [remote name]`
Pull and merge	`git pull [remote name]`
Pull and rebase local changes on top (instead of merging)	`git pull --rebase [remote name]`
Clone only a subset of files	`git init repo` `cd repo` `git remote add origin url` `git config core.sparsecheckout true` `echo "path/*" >> .git/info/sparse-checkout` `git pull --depth=1 origin master`

Linux Networking Reading List

Currently in no particular order. Most of these are kind of ancient.

Where's all the modern documentation? So much of what I've turned up searching is other folks complaining about having few options beyond reading source code.

The OREILLY books, while dated, seem to be some of the best available. Note that these can be read with a 7-day trial. Do this! At least get through the introduction section and first chapter of each to see if it's what you're after.

https://www.netfilter.org/

	#include <iostream>
	#include <fstream>
	#include <string>
	#include <stdint.h>
	#include <pcre.h>

	using namespace std;

	uint32_t cpufreq()
	{

	" indendentation specific to file types
	:filetype plugin indent on

	filetype plugin on

	" spaces instead of tabs
	"set expandtab

	" show line numbers
	"set number

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD