Max Golionko k1rk

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

Sample service script for debianoids

Look at LSB init scripts for more information.

Usage

Copy to /etc/init.d:

# replace "$YOUR_SERVICE_NAME" with your service's name (whenever it's not enough obvious)

tmux handy commands and references

####sessions

tmux new -s session_name      # new session by name
tmux attach -t session_name     # attach session by name (you can also use a instead of attach)
tmux switch -t session_name     # switch session by name (you can also use a instead of attach)
tmux list-sessions              # list existing sessions
bind-key : new -s session_name  # new session from within a session  
// detach
tmux detach # detach currently attached session

# uname -a
Linux base 4.0.5-gentoo #1 SMP Wed Jul 1 02:23:16 JST 2015 x86_64 Intel(R) Xeon(R) CPU E5-2640 0 @ 2.50GHz GenuineIntel GNU/Linux

Packages

# emerge -pvq openldap openssh sssd sudo
[ebuild R ] net-nds/openldap-2.4.38-r2 USE="berkdb crypt gnutls ipv6 minimal sasl ssl syslog tcpd -cxx -debug -experimental -icu -iodbc -kerberos -odbc -overlays -perl -samba (-selinux) -slp -smbkrb5passwd" ABI_X86="(64) -32 (-x32)"

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

Clarify and agree on the scope of the system

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

An Ansible summary

Jon Warbrick, July 2014, V3.2 (for Ansible 1.7)

Configuration file

intro_configuration.html

First one found from of

	# 0 is too far from ` ;)
	set -g base-index 1

	# Automatically set window title
	set-window-option -g automatic-rename on
	set-option -g set-titles on

	#set -g default-terminal screen-256color
	set -g status-keys vi
	set -g history-limit 10000

	#!/usr/bin/python

	# Equivalent of "tail -f" as a webpage using websocket
	# Usage: webtail.py PORT FILENAME
	# Tested with tornado 2.1

	# Thanks to Thomas Pelletier for it's great introduction to tornado+websocket
	# http://thomas.pelletier.im/2010/08/websocket-tornado-redis/

	import tornado.httpserver

	/* global _ */
	/*
	* Complex scripted dashboard
	* This script generates a dashboard object that Grafana can load. It also takes a number of user
	* supplied URL parameters (int ARGS variable)
	*
	* Global accessable variables
	* window, document, $, jQuery, ARGS, moment
	*
	* Return a dashboard object, or a function

	.DS_Store
	*.log
	tmp/