diff -ur v11/ftp_ut.py v12/ftp_ut.py
--- v11/ftp_ut.py	2020-02-17 17:48:58.000000000 +0900
+++ v12/ftp_ut.py	2020-02-18 21:47:01.000000000 +0900
@@ -165,7 +165,7 @@
 		return get_lst( path )
 
 	def get_kind(path, cut_d=False):
-		lst = get_lst( path, cut_d )
+		lst = get_lst( path, cut_d=cut_d )
 		if not lst:
 			return '' # no entry
 		if not is_dir( lst ):
@@ -177,6 +177,18 @@
 	def lstf(path=''):
 		return to_str( get_lst( path ), last=True )
 
+	def find(path=''):
+		kind = get_kind( path )
+		if not kind:
+			return ''
+		if kind == 'f':
+			return path + '\n'
+		lst = kind.split( '\n' )[1:]
+		if path:
+			lst = list( map( lambda p: path + '/' + p, lst ) )
+		f = lambda p: p + '\n' if not p.endswith( '/' ) else find( p[:-1] )
+		return to_str( map( f, lst ), delim='' )
+
 	def rm_rf(path):
 		s = get_kind( path, cut_d=True )
 		if not s:
@@ -340,6 +352,7 @@
 		'  host user passwd rmdir path ..',
 		'  host user passwd ls path ..',
 		'  host user passwd lst path ..',
+		'  host user passwd find path ..',
 		'  host user passwd rm_rf path ..',
 		'  host user passwd lock path ..',
 		'  host user passwd unlock path ..',
@@ -379,7 +392,7 @@
 	ftp = new(host, user, passwd, debug=debug)
 
 	( p0, p1_ ) = ( paths[0], paths[1:] )
-	quiet = p0 in ( 'ls', 'lst', 'lock', 'unlock' )
+	quiet = p0 in ( 'ls', 'lst', 'find', 'lock', 'unlock' )
 
 	ftp.login()
 	if not quiet:
@@ -401,6 +414,8 @@
 		r = ftp.do_paths( ftp.ls, p1_ ) if p1_ else ftp.ls()
 	elif p0 == 'lst':
 		r = ftp.do_paths( ftp.lstf, p1_ ) if p1_ else ftp.lstf()
+	elif p0 == 'find':
+		r = ftp.do_paths( ftp.find, p1_ ) if p1_ else ftp.find()
 	elif p0 == 'rm_rf':
 		r = ftp.do_paths( ftp.rm_rf, p1_ )
 	elif p0 == 'lock':