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Let's say you have a Bash shell script, and you need to run a series of operations on another system (such as via ssh). There are a couple of ways to do this.

First, you can stage a child script on the remote system, then call it, passing along appropriate parameters. The problem with this is you will need to manually keep the remote script updated whenever you change it -- could be a bit of a challenge when you have something to execute on a number of remote servers (i.e., you have a backup script running on a central host, and it needs to put remote databases in hot backup mode before backing them up).

Another option is to embed the commands you want to run remotely within the ssh command line. But then you run into issues with escaping special characters, quoting, etc. This is ok if you only have a couple commands to run, but if it is a complex piece of Bash code, it can get a bit unwieldy.

So, to solve this, you can use a technique called rpcsh -- rpc in shell script, as follows:

First, place th

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$brickdir = '/storage1';
$glusterdir = '/storage';

// if you only want to copy certain directories, specify them here
$directories = array('apt-mirror', 'apt-repo', 'downloads', 'torrents', 'storage');


$max_copies = 100; // concurrency
$file_size = 0; // total copied file size

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package main

import "log"
import "os"

import "github.com/docopt/docopt-go"
import "github.com/godbus/dbus"

const target string = "org.freedesktop.systemd1";
const object string = "/org/freedesktop/systemd1";

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package main

import (
	"golang.org/x/sys/unix"
	"log"
	"os"
)

func main() {
	file, err := os.Open("/sys/class/somefile")

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package epoll

import (
	"golang.org/x/sys/unix"
	"os"
)

type Op uint32

const (

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package terraformer

import (
	"bytes"
	"errors"
	"path"
	"path/filepath"

	"...runtime"
	"...store"

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Hyperlinks (a.k.a. HTML-like anchors) in terminal emulators

Most of the terminal emulators auto-detect when a URL appears onscreen and allow to conveniently open them (e.g. via Ctrl+click or Cmd+click, or the right click menu).

It was, however, not possible until now for arbitrary text to point to URLs, just as on webpages.

In spring 2017, GNOME Terminal and iTerm2 have changed this.

GNOME Terminal is based on the VTE widget, and almost all of this work went to VTE. As such, we expect other VTE-based terminal emulators to catch up and add support really soon. Other terminal emulators are also welcome and encouraged to join!

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;SMBDIS.ASM - A COMPREHENSIVE SUPER MARIO BROS. DISASSEMBLY
;by doppelganger (doppelheathen@gmail.com)

;This file is provided for your own use as-is.  It will require the character rom data
;and an iNES file header to get it to work.

;There are so many people I have to thank for this, that taking all the credit for
;myself would be an unforgivable act of arrogance. Without their help this would
;probably not be possible.  So I thank all the peeps in the nesdev scene whose insight into
;the 6502 and the NES helped me learn how it works (you guys know who you are, there's no 

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Freezer cgroup FTW

In a terminal start a server.

$ python -m SimpleHTTPServer 8000

In another terminal set up the cgroups freezer.

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Mapping Caps Lock to simultaneous Esc and Super (Mod4)

The CAPS key can be mapped to an escape key when pressed once, and a super (mod4) key when used in combination with other keys.

Create the file /usr/share/X11/xkb/symbols/custom_opts with the following:

// Make Caps an additional Escape
hidden partial modifier_keys
xkb_symbols "super_esc" {

key { [ Escape ] };