Vasantha Ganesh Kanniappan vasanthaganeshk

Find & Replace within an Entire Directory or Git Repo with sed

If replacing within a directory:

grep -rl 'apples' /dir_to_search_under | xargs sed -i 's/apples/oranges/g'

Or, within an entire git repository:

Quick and Dirty Ceph Cluster

This is a bare-bones guide on how to setup a Ceph cluster using ceph-ansible

This guide assumes:

Ansible is installed on your local machine
Eight Centos 7.2 nodes are provisioned and formatted with XFS
You have ssh and sudo access to your nodes

Ansible Setup

Basic unit type:

λ> replTy "()"
() :: ()

Basic functions:

Build Emacs-w64 with MSYS2/MinGW-w64 with Native Compilation

Instructions are modified from emacs-w64 Wiki page by zklhp. Many thanks for sharing!

Download the latest MSYS2 from this download page.
Install MSYS2 to, for example, C:\msys2 (make sure no space in path to avoid unwanted problems).
Optionally prettify the MSYS2 console mintty with ~/.minttyrc to make it more pleasing to eyes. Thanks to this awesome theme!

via: http://www.webupd8.org/2014/05/install-popcorn-time-in-ubuntu-or.html

To add the WebUpd8 Popcorn Time PPA and install the app in Ubuntu / Linux Mint (and elementary OS along with Ubuntu derivatives: Xubuntu, Kubuntu, etc.), use the following commands:

$ [sudo] add-apt-repository ppa:webupd8team/popcorntime
$ [sudo] apt-get update
$ [sudo] apt-get install popcorn-time

	module DepthFirstSearch where

	import Data.Foldable (asum)
	import Data.List ((\\))

	dfs :: (Eq a) => (a -> [a]) -> a -> a -> Maybe [a]
	dfs next start goal = dfs' [] start
	where dfs' path current
	\| current == goal = Just . reverse $ goal : path
	\| null nexts = Nothing

	# Compiled source #
	###################
	*.com
	*.class
	*.dll
	*.exe
	*.o
	*.so

	# Packages #