Dmitry Petukhov dphov

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Download and install p4merge

Download the perforce visual tool suite from here: http://www.perforce.com/perforce/downloads/index.html
Copy only the p4merge.app file into your /Applications/ directory

Setup p4merge as a visual mergetool

On Mac OS (host):

Shutdown your VM and do:

VirtualBox > Settings > Network > Add (you will get vboxnet0)

On a terminal ifconfig will show you new interface vboxnet0

VM's Settings > System > check "Enable I/O APIC." VM's Settings > Network > Adapter 2 > host-only vboxnet0

Searching Git commit history

This should be one of the core features of Git, but for some reason it's impossible to figure out how to search for a string in your commit history and see the diffs that that string is in. Here's the best I've come up with:

To find which commits and which files a string was added or removed in:

git log -S'search string' --oneline --name-status

To see the diff of that

	# Don't use FFmpeg for metadata extraction. Use FFprobe.
	# Its output is geared toward parsabilty.
	# Container and stream information in JSON format:
	ffprobe -show_format -print_format json 'Serenity - HD Trailer.mp4'
	ffprobe -show_streams -print_format json 'Serenity - HD Trailer.mp4'

	# Human-readable values:
	ffprobe -show_format -pretty -print_format json 'Serenity - HD Trailer.mp4'

	# Trim video to first 30 seconds, without transcoding.

	----- Esc -----
	Quick change directory: Esc + c
	Quick change directory history: Esc + c and then Esc + h
	Quick change directory previous entry: Esc + c and then Esc + p
	Command line history: Esc + h
	Command line previous command: Esc + p
	View change: Esc + t (each time you do this shortcut a new directory view will appear)
	Print current working directory in command line: Esc + a
	Switch between background command line and MC: Ctrl + o
	Search/Go to directory in active panel: Esc + s / Ctrl + s then start typing directory name

	#!/bin/bash

	# Functions ==============================================

	# return 1 if global command line program installed, else 0
	# example
	# echo "node: $(program_is_installed node)"
	function program_is_installed {
	# set to 1 initially
	local return_=1

	import gi
	gi.require_version('Gst', '1.0')
	from gi.repository import GObject, Gst

	Gst.debug_set_active(True)
	Gst.debug_set_default_threshold(3)

	GObject.threads_init()
	Gst.init(None)

	# to generate your dhparam.pem file, run in the terminal
	openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048