mannykary

To set up SSH server on Mac OS X (tested on Sierra, and likely works for other OS X versions):

1. Open Terminal, and run sudo nano /etc/ssh/sshd_config
2. Make sure the line for PubkeyAuthentication is uncommented, and is set to yes. It should looke like PubKeyAuthentication yes. Save the file.
3. Go to Preferences > Sharing
4. Check "Remote Login"
5. Select "Only these users:", and remove all users from the list except your own user.
6. From the client, open the Terminal and generate an SSH key: ssh-keygen. It is best to call it something that describes your SSH server, so that you don't reuse the key with other SSH servers.
7. Run ssh-copy-id -i ~/.ssh/private_key user@sshserverhostname
8. On the SSH server, verify that the public key was added to ~/.ssh/authorized_keys

mannykary

Useful Docker commands

NOTE: this is a WIP; I will add more to this document.

Remove all dangling anonymous volumes

This removes all dangling anonymous volumes. They can take up a lot of space over a long period of time, and should be cleaned out periodically.

Since anonymous valumes are unnamed, they have a 64 character hex string, so we can use grep to filter only for 64-character long volume names.

mannykary

import signal
import time

class GracefulKiller:
    kill_now = False
    def __init__(self):
        signal.signal(signal.SIGINT, self.exit_gracefully)
        signal.signal(signal.SIGTERM, self.exit_gracefully)

    def exit_gracefully(self, signum, frame):

mannykary

#!/bin/bash

# Requirements:
# OS X
# PDFTk server: https://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/pdftk_server-2.02-mac_osx-10.11-setup.pkg

echo "input or drag and drop PDF with odd pages"
read oddpages
echo "input or drag and drop PDF with reversed even pages"
read evenpages

mannykary

Vim Cheat Sheet

##In Command mode (or Normal mode) ###Basics

• Edit/enter Insert mode: i (shows -- INSERT -- in bottom-left corner)
• Save/write to file: :w, then <Enter>
• Save and quit: :wq, then <Enter>
• Quit without saving (discard changes): :q!, then <Enter>

###Moving the cursor around the file

mannykary

var keyCodes = {
		'A': 65,
		'B': 66,
		'C': 67,
		'D': 68,
		'E': 69,
		'F': 70,
		'G': 71,
		'H': 72,
		'I': 73,

mannykary

# top-most EditorConfig file
root = true

# Unix-style newlines with a newline ending every file
[*]
charset = utf-8

end_of_line = lf
insert_final_newline = true

mannykary

function parse_git_dirty {
  if [[ -n "$(git status --porcelain 2> /dev/null)" ]]; then
    echo -e " \033[0;31m✗"
  else
    echo -e " \033[0;32m✔"
  fi
}

parse_git_branch() {
  git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e "s/* \(.*\)/ \1$(parse_git_dirty)/"