command line groovy doc or methods lookup

$ groovy gdoc File each
eachFile
  public static void org.codehaus.groovy.runtime.DefaultGroovyMethods.eachFile(java.io.File,groovy.lang.Closure) throws java.io.FileNotFoundException,java.lang.IllegalArgumentException
each
  public static java.lang.Object org.codehaus.groovy.runtime.DefaultGroovyMethods.each(java.lang.Object,groovy.lang.Closure)
eachFileMatch
  public static void org.codehaus.groovy.runtime.DefaultGroovyMethods.eachFileMatch(java.io.File,java.lang.Object,groovy.lang.Closure) throws java.io.FileNotFoundException,java.lang.IllegalArgumentException
eachLine
  public static void org.codehaus.groovy.runtime.DefaultGroovyMethods.eachLine(java.io.File,groovy.lang.Closure) throws java.io.IOException
eachObject
  public static void org.codehaus.groovy.runtime.DefaultGroovyMethods.eachObject(java.io.File,groovy.lang.Closure) throws java.io.IOException,java.lang.ClassNotFoundException
eachDirRecurse
  public static void org.codehaus.groovy.runtime.DefaultGroovyMethods.eachDirRecurse(java.io.File,groovy.lang.Closure) throws java.io.FileNotFoundException,java.lang.IllegalArgumentException
eachFileRecurse
  public static void org.codehaus.groovy.runtime.DefaultGroovyMethods.eachFileRecurse(java.io.File,groovy.lang.Closure) throws java.io.FileNotFoundException,java.lang.IllegalArgumentException
eachDir
  public static void org.codehaus.groovy.runtime.DefaultGroovyMethods.eachDir(java.io.File,groovy.lang.Closure) throws java.io.FileNotFoundException,java.lang.IllegalArgumentException
eachByte
  public static void org.codehaus.groovy.runtime.DefaultGroovyMethods.eachByte(java.io.File,groovy.lang.Closure) throws java.io.IOException
eachDirMatch
  public static void org.codehaus.groovy.runtime.DefaultGroovyMethods.eachDirMatch(java.io.File,java.lang.Object,groovy.lang.Closure) throws java.io.FileNotFoundException,java.lang.IllegalArgumentException
eachWithIndex
  public static java.lang.Object org.codehaus.groovy.runtime.DefaultGroovyMethods.eachWithIndex(java.lang.Object,groovy.lang.Closure)