sergiitk

Useful shell tools (BSD)

Strings

• l | tail +2 — Skip first line of stdout
• l | head -n-1 — Skip last line of stdout (GNU version only)
• echo "test" | head -c-1 — Remove last newline
• comm -12 <(echo 1; echo 2) <(echo 1; echo 2; echo 3) — Shows intersection (here 1 2).
• cat template.txt | envsubst — substitutes environment variables in file
• echo 123abc | od -c -t d1 — Show decimal dump
• echo 123abc | xxd — Show a hexdump (or do the reverse)

sergiitk

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>name</key>
    <string>Railscasts 2</string>
    <key>settings</key>
    <array>
      <dict>
        <key>settings</key>

sergiitk

OS X terminal tips an tricks

Shell tools

System

• sw_vers — Print Mac OS X operating system version information
• system_profiler — Reports system hardware and software configuration.
• system_profiler SPHardwareDataType — Hardware overview.
• hostinfo — Host information.
• nvram -p — Print all of the firmware variables.
• getconf DARWIN_USER_CACHE_DIR — Retrieve standard configuration variables
• /usr/libexec/path_helper — Helper for constructing PATH environment variable

sergiitk

// ==UserScript==
// @name       GitBox extra features
// @namespace  https://www.facebook.com/sergii.tk
// @version    0.1
// @description  Copies code blocks to clipboard
// @match      https://app.gistboxapp.com/*
// @copyright  2013+, Sergii Tkachenko
// @require https://raw.github.com/rafjaf/ClipCopy-for-TM/master/lib/installGM_setClipboard.js
// ==/UserScript==

sergiitk

// Do not follow links in gist content, just copy its href to the clipboard.
$(document).on('click', '.gist-file-code a', function() {
  var link = $(this).attr('href');
  gitbox_extra_save_to_clipboard(link, 'Copied.<br /><small>' + link + '</small>');
  return false;
})

sergiitk

Drupal Cookbook

Upgrade

• Remove all files from working directory — _ rm -rf ^.git(D)
• Open Drupal Releases page
• Copy link to the last release compressed to tar.gz
• Download and extract last Drupal — tar xvf =(curl $(pbpaste)) --strip 1
• Restore deleted files in sites and profiles folder — g ls-files -z --deleted -- {sites,profiles} | xargs -0 git checkout --
• Show status for these folders — gst -- {sites,profiles}
• In most cases all changes to profiles folder are necessary — ga profiles/
• It's ok to update default.settings.php — ga sites/default/default.settings.php

sergiitk

name = VoxPelli OAuth Test
core = 7.x

dependencies[] = oauth_common
dependencies[] = http_client

sergiitk

#!/usr/bin/env zsh
# ------------------------------------------------------------------------------
# Prompt for the Zsh shell:
#   * One line.
#   * VCS info on the right prompt.
#   * Only shows the path on the left prompt by default.
#   * Crops the path to a defined length and only shows the path relative to
#     the current VCS repository root.
#   * Wears a different color wether the last command succeeded/failed.
#   * Shows user@hostname if connected through SSH.

sergiitk

Trying 142.4.4.224...
Connected to figgis.agency.
Escape character is '^]'.
                                                                         
                                                                         
                                                                         
                                                                         
                                                                         
                                ALGERSOFT FILM                           
                                   presents                              

sergiitk

Exporting (iCloud) Keychain and Safari credentials to a CSV file

After my dad died, I wanted to be able to have access any of his online accounts going forward. My dad was a Safari user and used iCloud Keychain to sync his credentials across his devices. I don’t want to have to keep an OS X user account around just to access his accounts, so I wanted to export his credentials to a portable file.

This is the process I used to create a CSV file of his credentials in the format “example.com,user,pass”. This portable format would be pretty easy to import into 1Password or Safari in the future.

The way I went about this isn’t great; it opens up more opportunities for apps to control one’s Mac through Accessibility APIs, it writes plaintext passwords to disk, and it could use some cleaning up. A better approach might leverage the security command line tool that ships with OS X. That said, I found this method to be a fun illustration of what’s possible us