rgl

QEMU Machine Protocol (QMP) socket

Start QEMU with QMP UNIX socket and connect:

qemu-system-x86_64 -qmp unix:test.socket,server,nowait ...
nc -U test.socket
qmp-shell test.socket    # use the raw qmp interface. see https://github.com/0xef53/qmp-shell
qmp-shell -H test.socket # use the human interface.   see https://github.com/0xef53/qmp-shell

fnky

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

• Ctrl-Key: ^[
• Octal: \033
• Unicode: \u001b
• Hexadecimal: \x1B
• Decimal: 27

mohanpedala

Table of Contents

• set -e, -u, -x, -o pipefail
• set -e
• set -x
• set -u
• set -o pipefail
• Setting IFS
• Original Reference

set -e, -u, -x, -o pipefail

mildred

Build a fedora kernel rpm

Rationale:

• I need a custom kernel (because sound won't work with vanilla)
• I want to use Fedora Atomic Host
• The only way to override the kernel with Fedora Atomic Host is to install a kernel package using ostree-rpm
• I have a metered network connection and want to avoid downloading the kernel sources too many times
• The powerful machine that can build the kernel is nor running Fedora or Red-hat based system with rpmbuild available

extremecoders-re

Setting up Qemu with a tap interface

There are two parts to networking within QEMU:

• The virtual network device that is provided to the guest (e.g. a PCI network card).
• The network backend that interacts with the emulated NIC (e.g. puts packets onto the host's network).

Example: User mode network

mcastelino

Simple vsock setup for QEMU

Configuration

Host Kernel: rawhide 4.13.0-0.rc6.git4.2.fc28.x86_64 (on Fedora 24)

QEMU is mainline built from sources: QEMU emulator version 2.10.50 (v2.10.0-105-g223cd0e)

Guest: clear-17460-kvm.img (which has vsock support)

pierrejoubert73

How to add a collapsible section in markdown

1. Example

Click me

Heading

1. Foo
2. Bar
   • Baz

• Qux

blabber

BEGIN{
	if (ARGC != 2) {
		print("This script takes exactly two parameter. 1: name of node, 2: number of hops");
		exit(1);
	}
	
	void reduce_in(graph_t _g, node_t _n, edge_t _e, int _d){
		_e = fstin(_n);
		while (_e != NULL) {
			clone(_g, _e);

t-mart

Map	Action
<F1>	Causes Netrw to issue help
<cr>	Netrw will enter the directory or read the file
<del>	Netrw will attempt to remove the file/directory
-	Makes Netrw go up one directory
a	Toggles between normal display, hiding (suppress display of files matching g:netrw_list_hide) showing (display only files which match g:netrw_list_hide)
c	Make browsing directory the current directory
C	Setting the editing window
d	Make a directory

jesslilly

Cron Job Wrapper Wish List

I want a script that will give me:

1. Logging
2. Log purging!
3. Email errors!
4. Prevent duplicate processes! (flock)
5. Source an environment file!
6. Anything else?