caiorss

;; Elisp session in REPL IELM
;;
;;
;;

ELISP> (defmacro inc (var)
  (list 'setq var (list '1+ var)))
inc
ELISP> (setq x 0)
0 (#o0, #x0, ?\C-@)

bastman

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

tomysmile

Installing memcached on Mac with Homebrew and Lunchy

This is a quick guide for installing memcached on a Mac with Homebrew, and starting and stopping it with Lunchy. I hope this tutorial will get your memcached up and running in no time.

Step 1 — Install Homebrew

Installing Homebrew is super easy. Just paste this in your terminal —

$ ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

htp

curl --include \
     --no-buffer \
     --header "Connection: Upgrade" \
     --header "Upgrade: websocket" \
     --header "Host: example.com:80" \
     --header "Origin: http://example.com:80" \
     --header "Sec-WebSocket-Key: SGVsbG8sIHdvcmxkIQ==" \
     --header "Sec-WebSocket-Version: 13" \
     http://example.com:80/

mattbell87

Enable forwarding:

sysctl -w net.ipv4.ip_forward=1

Create this script eg sudo nano iptables.sh

eth=$1
proto=$2

larytet

/**
 * Based on https://www.fsl.cs.sunysb.edu/~vass/linux-aio.txt
 * Compile gcc -Wall test_aio.c -o test_aio
 * Run rm -rf /tmp/testfile ;./iotest 
 */

#define _GNU_SOURCE		/* syscall() is not POSIX */

#include <stdio.h>		/* for perror() */
#include <unistd.h>		/* for syscall() */

robwent

SELECT * FROM wp_posts
LEFT JOIN wp_term_relationships ON
(wp_posts.ID = wp_term_relationships.object_id)
LEFT JOIN wp_term_taxonomy ON
(wp_term_relationships.term_taxonomy_id = wp_term_taxonomy.term_taxonomy_id)
WHERE wp_posts.post_type = 'post'
AND wp_term_taxonomy.taxonomy = 'category'
AND wp_term_taxonomy.term_id = 48
ORDER BY post_date DESC

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

mjambon

#! /usr/bin/env bash
#
# Run parallel commands and fail if any of them fails.
#

set -eu

pids=()

for x in 1 2 3; do

sigoden

wget -O /tmp/YaHei.Consolas.1.12.zip https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/uigroupcode/YaHei.Consolas.1.12.zip
unzip /tmp/YaHei.Consolas.1.12.zip
sudo mkdir -p /usr/share/fonts/consolas
sudo mv YaHei.Consolas.1.12.ttf /usr/share/fonts/consolas/
sudo chmod 644 /usr/share/fonts/consolas/YaHei.Consolas.1.12.ttf
cd /usr/share/fonts/consolas
sudo mkfontscale && sudo mkfontdir && sudo fc-cache -fv