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Google Cloud Storage backup tutorial

Introduction

This tutorial shows how to make backups to Google Cloud Storage. The backups are:

automatic
stored off site
incremental

Common Lisp Scripting with Roswell

"Roswell Script" is implementation-independent Common Lisp scripting program which uses Roswell. Although Roswell itself is a unified interface to Common Lisp implementations, it also encourages writing scripts with it.

To start writing it, run ros init in your terminal:

$ ros init
Usage: ros init [template] name [options...]

Editing remote files in Vim with SSH

Configure SSH

In ~/.ssh/config, include the lines:
```
Host *
ControlPath ~/.ssh/sockets/%r@%h-%p
```

Prereqs

These are for the combined vim-sexp (https://github.com/guns/vim-sexp) and vim-sexp-mappings-for-regular-people (https://github.com/tpope/vim-sexp-mappings-for-regular-people) plugins. vim-sexp is neat on its own but Tim Pope makes common stuff much easier.

Note that some vim-sexp functionality depends on <LocalLeader> mappings. This is a different leader key than the global leader, and is the variable maplocalleader (instead of mapleader). To see if you have this set, use :echo maplocalleader; if it errors out you'll need to set it, otherwise it will echo the key. If you want to set your LocalLeader to <Space>, you'll need two commands in your .vimrc, since by default <Space> is bound to <Right> in normal mode:

nnoremap <Space> <Nop>
let maplocalleader=" "

	p = subprocess.Popen(shlex.split(cmd), stdout=subprocess.PIPE)
	# Grab stdout line by line as it becomes available. This will loop until
	# p terminates.
	while p.poll() is None:
	l = p.stdout.readline() # This blocks until it receives a newline.
	print l
	# When the subprocess terminates there might be unconsumed output
	# that still needs to be processed.
	print p.stdout.read()

	;; TRAMP gcloud ssh
	(add-to-list 'tramp-methods
	'("gssh"
	(tramp-login-program "gssh")
	(tramp-login-args (("%h")))
	(tramp-async-args (("-q")))
	(tramp-remote-shell "/bin/sh")
	(tramp-remote-shell-args ("-c"))
	(tramp-gw-args (("-o" "GlobalKnownHostsFile=/dev/null")
	("-o" "UserKnownHostsFile=/dev/null")

	import
	asyncdispatch, asyncnet, htmlparser, xmltree, httpclient, strutils,
	strtabs, streams, uri, sets

	var visited = initSet[string]()

	proc crawl(url: string, client: PAsyncHttpClient = newAsyncHttpClient()) {.async.} =
	if url in visited: return # Already visited this URL.
	echo("Crawling ", url)
	visited.incl(url)

	.vimrc
	" Map leader to comma
	let maplocalleader=","

	" Toggle this for vim-sexp to not go into insert mode after wrapping something
	let g:sexp_insert_after_wrap = 0
	" Toggle this to disable automatically creating closing brackets and quotes
	let g:sexp_enable_insert_mode_mappings = 1

	Vocab