Pavlo Falieiev faleev

Lecture 1: Introduction to Research — [📝Lecture Notebooks] [▶️Video]
Lecture 2: Introduction to Python — [📝Lecture Notebooks] [▶️Video]
Lecture 3: Introduction to NumPy — [📝Lecture Notebooks] [▶️Video]
Lecture 4: Introduction to pandas — [📝Lecture Notebooks] [▶️Video]
Lecture 5: Plotting Data — [📝Lecture Notebooks] [[▶️Vide

Revert the full commit

Sometimes you may want to undo a whole commit with all changes. Instead of going through all the changes manually, you can simply tell git to revert a commit, which does not even have to be the last one. Reverting a commit means to create a new commit that undoes all changes that were made in the bad commit. Just like above, the bad commit remains there, but it no longer affects the the current master and any future commits on top of it.

git revert {commit_id}

About History Rewriting

Delete the last commit

Deleting the last commit is the easiest case. Let's say we have a remote origin with branch master that currently points to commit dd61ab32. We want to remove the top commit. Translated to git terminology, we want to force the master branch of the origin remote repository to the parent of dd61ab32:

Verify and Repair Disk Permissions via Terminal (Mac OS X)

Verify Permissions

diskutil verifyPermissions /

Repair Permissions

diskutil repairPermissions /

Installing Jenkins from scratch

This is how I install Jenkins on a bare system. I'm using Ubuntu 12.04 32bit

First Steps

System Config

Always good to update the system packages after a fresh install:

	import numpy as np
	import cv2
	# for windows, mac users
	# from PIL import ImageGrab
	# for linux users
	import pyscreenshot as ImageGrab

	# four character code object for video writer
	fourcc = cv2.VideoWriter_fourcc(*'XVID')
	# video writer object

	# code goes in ~/.bash_profile
	# tested on OS X

	export APPIUM_HOME="$HOME/Desktop/appium"
	export TEST_HOME="$HOME/path/to/tests"
	export APPIUM_AVD="t18"

	function three {
	# does node exist?
	[[ $(ps axo pid,command \| grep "[0-9]\+ node" \| wc -l) -gt 0 ]] && \

	title: Installing OpenStack Icehouse on Ubuntu 14.04 LTS in 10 Minutes
	author: http://github.com/kordless
	summary: A 10 minute guide on installing OpenStack Icehouse on Ubuntu 14.04 LTS.
	type: guide
	published: 1336779260
	meta: openstack

	----- 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

	# A two-line colored Bash prompt (PS1) with Git branch and a line decoration
	# which adjusts automatically to the width of the terminal.
	# Recognizes and shows Git, SVN and Fossil branch/revision.
	# Screenshot: http://img194.imageshack.us/img194/2154/twolineprompt.png
	# Michal Kottman, 2012

	RESET="\[\033[0m\]"
	RED="\[\033[0;31m\]"
	GREEN="\[\033[01;32m\]"
	BLUE="\[\033[01;34m\]"

	git branch -m old_branch new_branch # Rename branch locally
	git push origin :old_branch # Delete the old branch
	git push --set-upstream origin new_branch # Push the new branch, set local branch to track the new remote