diff -ur v1/ftp_ut.py v2/ftp_ut.py
--- v1/ftp_ut.py	2020-02-08 20:58:26.000000000 +0900
+++ v2/ftp_ut.py	2020-02-09 11:01:19.000000000 +0900
@@ -5,8 +5,9 @@
 import cmd_ut
 import dbg
 import arg
+import base
 
-to_str = lambda lst: '\n'.join( lst )
+to_str = base.to_str
 
 def login_str(host, user, passwd):
 	lst = [
@@ -56,13 +57,33 @@
 	f = lambda path: 'rmdir {}'.format(path)
 	return to_str( map( f, paths ) )
 
+def ls_str(paths):
+	f = lambda path: 'ls {}'.format(path)
+	return to_str( map( f, paths ) )
+
+def cmd_str_for_show(s): # passwd !
+	def f(line):
+		ws = line.split(' ')
+		if ws[0] == 'user':
+			ws[2] = '----'
+		return to_str( ws, delim=' ' )
+
+	return to_str( map( f, s.split('\n') ) )
+
+def ls_to_lst(lst):
+	f = lambda s: s.split()[-1] if s else ''
+	flt = lambda s: s and s not in ('.', '..')
+	return filter( flt, map( f, lst ) )
+
 def help():
 	msgs = [
-		'-h',
+		'-h -v',
 		'  host user passwd path ..',
 		'  host user passwd del path ..',
 		'  host user passwd mkdir path ..',
 		'  host user passwd rmdir path ..',
+		'  host user passwd ls path ..',
+		'  host user passwd lst path ..',
 	]
 	dbg.help_exit( to_str( msgs ) )
 
@@ -78,24 +99,41 @@
 		help()
 
 	lst = []
-	lst.append( login_str( host, user, passwd ) )
+	s = login_str( host, user, passwd )
+	lst.append(s)
 
-	if paths[0] == 'del':
-		lst.append( get_str( paths[0], paths[1:], False ) )
-	elif paths[0] == 'mkdir':
-		lst.append( mkdir_str( paths[1:] ) )
-	elif paths[0] == 'rmdir':
-		lst.append( rmdir_str( paths[1:] ) )
+	s = ''
+	( p0, p1_ ) = ( paths[0], paths[1:] )
+	if p0 == 'del':
+		s = get_str( p0, p1_, False )
+	elif p0 == 'mkdir':
+		s = mkdir_str( p1_ )
+	elif p0 == 'rmdir':
+		s = rmdir_str( p1_ )
+	elif p0 == 'ls':
+		s = ls_str( p1_ )
+	elif p0 == 'lst': # special
+		s = ls_str( p1_ )
 	else:
-		lst.append( get_str( 'put', paths ) )
-
-	lst.append( 'quit' )
-
-	s = to_str( lst ) + '\n'
-
-	lst = s.split('\n')
-	lst[1] = ' '.join( lst[1].split(' ')[:-1] + ['----'] )
-	dbg.out( to_str(lst) )
-
-	cmd_ut.call_comm( 'ftp -n', s.encode() )
+		s = get_str( 'put', paths )
+	if s:
+		lst.append(s)
+
+	lst.append('quit')
+
+	s = to_str( lst )
+
+	res_show = [ 'ls', 'lst' ]
+
+	if p0 not in res_show:
+		dbg.out( cmd_str_for_show(s) )
+
+	cmd = 'ftp -n'
+	r = cmd_ut.call_comm( cmd, s.encode() ).decode()
+	if p0 in res_show:
+		lst = r.strip().split('\n')
+		lst = lst[1:] # cut 'Interactive mode off.'
+		if p0 == 'lst':
+			lst = sorted( ls_to_lst(lst) )
+		dbg.out( to_str(lst) )
 # EOF