[7m Variable Assignments [0;0m

  [Operators]     assign        str='xyz'
                  append        str+='abc'
  [Compound Data] array         array=(a b c)   array[1]=B   "${a[@]}"
                  assoc         assoc=(['a']=1 ['b']=2)   assoc['x']=b
  [Builtins]      local   readonly   export   unset   shift
                  declare   typeset   X let
  [Oil Keywords]  const   var   setvar   set   setlocal   setglobal   setref
