Remiii

How to delete Vault (AWS Glacier)

This Gist give some tips in order to remove AWS Glacier Vault with AWS CLI (ie. https://aws.amazon.com/en/cli/).

Step 1 / Retrive inventory

$ aws glacier initiate-job --job-parameters '{"Type": "inventory-retrieval"}' --vault-name YOUR_VAULT_NAME --account-id YOUR_ACCOUNT_ID --region YOUR_REGION

shady-robot

Tmux is a "terminal multiplexer", it enables a number of terminals to be accessed and controlled from a single terminal.
    
If you use Debian/Ubuntu, you can just run apt-get install tmux, and voila. 
  
Since the title was about centos 7, then do the following step to install tmux.
  (1). tmux has a library dependency on libevent which, of course, isn’t installed by default. 
    $ wget https://github.com/downloads/libevent/libevent/libevent-2.0.21-stable.tar.gz
    $ tar xzvf libevent-2.0.21-stable.tar.gz
    $ cd libevent-2.0.21-stable
    $ ./configure && make

ygotthilf

ssh-keygen -t rsa -b 4096 -m PEM -f jwtRS256.key
# Don't add passphrase
openssl rsa -in jwtRS256.key -pubout -outform PEM -out jwtRS256.key.pub
cat jwtRS256.key
cat jwtRS256.key.pub

abrahamrhoffman

CentOS 7 Kickstart File - HOWTO Build ISO

There is so much documentation online from RedHat and CentOS about this topic - it's sad that I am writing this. But the real state of documentation on this topic (CentOS 7 + KS + ISO = Bootable DVD) is almost non-existent.

I found this: http://smorgasbork.com/component/content/article/35-linux/151-building-a-custom-centos-7-kickstart-disc-part-1

Which I greatly appreciate and +1, but the documentation is half-baked and there are numerous errors.

Finally... FINALLY! After four days of banging my head, I got this to work. Hopefully someone else will be able to do this in a few hours, instead of blowing their weekend like me. :(

P7h

# Steps to build and install tmux from source.
# Takes < 25 seconds on EC2 env [even on a low-end config instance].

VERSION=2.7
sudo yum -y remove tmux
sudo yum -y install wget tar libevent-devel ncurses-devel
wget https://github.com/tmux/tmux/releases/download/${VERSION}/tmux-${VERSION}.tar.gz
tar xzf tmux-${VERSION}.tar.gz
rm -f tmux-${VERSION}.tar.gz
cd tmux-${VERSION}

xiongjia

A simple knex sample

knexjs ( http://knexjs.org/ ) is SQL query builder.
This gist is a simple knexjs sample.

Installation

1. Clone this gist to a local folder
2. Run npm run build in the local folder

Usage & Database Schema

• node index.js --createSchema : Create the database schema. (The default SQL client is sqlite3. The schema is created by db_schema.js )

VEnis

Markdown: Syntax

• Overview
  • Philosophy
  • Inline HTML
  • Automatic Escaping for Special Characters
• Block Elements
  • Paragraphs and Line Breaks
  • Headers
• Blockquotes

ssstonebraker

#!/bin/bash

####################################
# Exit if program echo does not exist (this allows us to do one line if statements)
[ ! -x "$(which echo)" ] && exit 1

########################################
# pretty printing functions
function print_status { echo -e "\x1B[01;34m[*]\x1B[0m $1"; }
function print_good { echo -e "\x1B[01;32m[*]\x1B[0m $1"; }

willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

asiegman

#!/bin/bash
#
# SSH Exit Codes
#
# Using SSH in scripting is pretty standard, but sometimes you want to stop execution of a script
# if a command inside an SSH session fails to exit cleanly (return 0).  The key to remember is that
# the ssh command's exit code will be that of the *last executed* command inside the ssh session, just
# like a bash script ends with the exit code of the last command executed unless you specifically
# call exit.
#