Add some reference material to work. [admin]

work/reference/bash_completion.sh

@@ -0,0 +1,19 @@
+# ~/.bash_completion.d/yaml_command
+
+_yaml()
+{
+    local cur=${COMP_WORDS[COMP_CWORD]}
+    local pos=(COMP_CWORD - 1)
+    local pre=${COMP_WORDS[@]:0:$pos}
+    local cpl=$($pre _)
+
+    if [[ "$cur" == -* ]]; then
+        cpl=${cpl[@]//^[^-]/}
+    else
+        cpl=${cpl[@]//-*/}
+    fi
+
+    COMPREPLY=( $(compgen -W "$cpl" -- $cur) )
+}
+complete -F _yaml yaml
+

work/sandbox/readme-example.rb

@@ -0,0 +1,33 @@
+require 'executable'
+
+class HelloCommand
+  include Executable
+
+  # Say it in uppercase?
+  def loud=(bool)
+    @loud = bool
+  end
+
+  #
+  def loud?
+    @loud
+  end
+
+  # Show this message.
+  def help!
+    cli.show_help
+    exit
+  end
+  alias :h! :help!
+
+  # Say hello.
+  def call(name=nil)
+    name = name || 'World'
+    str  = "Hello, #{name}!"
+    str  = str.upcase if loud?
+    puts str
+  end
+end
+
+HelloCommand.execute
+