aserrallerios

RSYNC

FROM: https://stackoverflow.com/questions/20969124/how-to-diff-directories-over-ssh

Try using "rsync" with the "-n" option, which just does a "dry run" and tells you what it would do.

answered Jan 7 '14 at 10:39 Mark Setchell

-c will tell rsync to look at checksums, not just date & length – Mike Aug 5 '14 at 22:07

dcalixto

System Updates

http://bookofzeus.com/harden-ubuntu/initial-setup/system-updates/

Keeping the system updated is vital before starting anything on your system. This will prevent people to use known vulnerabilities to enter in your system.

sudo apt-get update
sudo apt-get upgrade
sudo apt-get autoremove
sudo apt-get autoclean

gasparportik

Rails.logger.debug(ActiveSupport::LogSubscriber.new.send(:color, "D:#{var}", :red))

rgl

This will show how to run an emulated arm64 virtual machine under qemu.

It first shows how to launch a typical amd64 virtual machine to make sure we have cloud-init working.

Then it shows how to launch the arm64 (aka aarch64) virtual machine.

NB In my humble i3-3245 amd64 host this is way too slow to run anything useful as it takes about 6m to allow you to finally login, and after that, its slow too. You are really better off with a proper physical arm64 machine, like:

• Raspberry Pi 4
• ROCKPro64

akagr

 # Just a copy of https://stackoverflow.com/a/30724359/1825727
  def from_hashstring(value)
    json_string = value
                  .gsub(/([{,]\s*):([^>\s]+)\s*=>/, '\1"\2"=>') # Handle ruby symbols as keys
                  .gsub(/([{,]\s*)([0-9]+\.?[0-9]*)\s*=>/, '\1"\2"=>') # Handle numbers as keys
                  .gsub(/([{,]\s*)(".+?"|[0-9]+\.?[0-9]*)\s*=>\s*:([^,}\s]+\s*)/, '\1\2=>"\3"') # Handle symbols as values
                  .gsub(/([\[,]\s*):([^,\]\s]+)/, '\1"\2"') # Handle symbols in arrays
                  .gsub(/([{,]\s*)(".+?"|[0-9]+\.?[0-9]*)\s*=>/, '\1\2:') # Finally, convert => to :

    JSON.parse(json_string)

hulous

# This template is inspired on https://gist.githubusercontent.com/lazaronixon/7815d84702f277ead5e89c9f2aa5581f/raw/rubocop.yml

require:
  - rubocop-performance
  - rubocop-rails
  - rubocop-rspec

Rails:
  Enabled: true