dolzenko

Action	Command
Move to next chat	Ctrl + Tab
Move to next chat	Ctrl + PageDown
Move to next chat	Alt + Arrow Down
Move to previous chat	Ctrl + Shift + Tab
Move to previous chat	Ctrl + PageUp
Move to previous chat	Alt + Arrow Up
Go to Previous Folder	Ctrl + Shift + Arrow Up
Go to Next Folder	Ctrl + Shift + Arrow Down

dolzenko

Debugging in JRuby

Step-by-step debugging and stack navigation for JRuby code.

Problem: the common tools byebug and pry-byebug are MRI-only.

Prerequisites

Force JRuby to run in fully interpreted mode:
(otherwise next would behave like step)

dolzenko

exceptions = []
tree = {}
ObjectSpace.each_object(Class) do |cls|
  next unless cls.ancestors.include? Exception
  next if exceptions.include? cls
  next if cls.superclass == SystemCallError # avoid dumping Errno's
  exceptions << cls
  cls.ancestors.delete_if {|e| [Object, Kernel].include? e }.reverse.inject(tree) {|memo,cls| memo[cls] ||= {}}
end

dolzenko

Smart Caps Lock: Remap to Control AND Escape (Linux, Mac, Windows)

把 Caps Lock 變成智慧的 Control 以及 Escape ：

• 單獨輕按一下就是 Escape 。
• 若按下時同時按著其他鍵，就會是 Control 。

這應該是 Vim 和 Emacs 的最佳解了！(Emacs? Bash 的快捷鍵就是 Emacs 系列的)

• Send Escape if you tap Caps Lock alone.

dolzenko

Improved YARD CHEATSHEET http://yardoc.org

forked from https://gist.github.com/chetan/1827484 which is from early 2012 and contains outdated information.

• Official Getting Started Guide
• Official Tags documentation
• Type naming examples

Templates to remind you of the options and formatting for the different types of objects you might want to document using YARD.

dolzenko

if Rails.env.development?
  FileUtils.mkdir_p(Rails.root.join('config', 'certs'))
  key_path = Rails.root.join('config', 'certs', 'development.key')
  crt_path = Rails.root.join('config', 'certs', 'development.crt')
  unless File.exist?(key_path) && File.exist?(crt_path)

    def cert_domain
      'localhost' # Setting[:cookie_domain] || 'localhost'
    end

dolzenko

userPrincipalName(UPN) Vs samAccountName

The samAccountName is the User Logon Name in Pre-Windows 2000 (this does not mean samAccountName is not being used as Logon Name in modern windows systems). The userPrincipalName is a new way of User Logon Name from Windows 2000 and later versions. user Name part can be different for the same user like DomainName\testUser and [email protected].

SamAccountName

• The samAccountName attribute is the user logon name used to support clients and servers from a previous version of Windows ( Pre-Windows 2000).
• The user logon name format is : DomainName\testUser.
• The samAccountName must be unique among all security principal objects within the domain.
• The samAccountName should be less than 20 characters.
• Query for the new name against the domain to verify that the samAccountName is unique in the domain.

dolzenko

The standard names for indexes in PostgreSQL are:

{tablename}_{columnname(s)}_{suffix}

where the suffix is one of the following:

• pkey for a Primary Key constraint;
• key for a Unique constraint;
• excl for an Exclusion constraint;
• idx for any other kind of index;

dolzenko

README

Let Tomcat is download and installed under /opt/tomcat. Also, let tomcat be a non-provileged user under which the server will be running.

We assume that we keep server's binaries under /opt/tomcat and we will create a server instance named foo under /var/tomcat/ (carrying its own conf, logs, webapps, work, lib directories). See also https://dzone.com/articles/running-multiple-tomcat.

Create a template service unit file at /etc/systemd/system/[email protected]:

dolzenko

:: if the service is run in Session 0 then open a console for that session and run it from there
::   e.g.  %PsExec% -s -h -d -i 0 cmd.exe

:: set the paths for your environment
set PsExec=C:\Apps\SysInternals\PsExec.exe
set JAVA_HOME=C:\Apps\Java\jdk1.8.0_121
set DUMP_DIR=C:\temp

@echo off