lf: list files
usage: lf [-f] [-d] [-l] [-p] PATTERN
usage: lf [-f] [-d] [-l] [-p] [-R] [-U] 'REGEXP'
usage: lf [-f] [-d] [-l] [-p] [-R] [-U] [-a]
options:
  -f  list regular files
  -d  list directories
  -l  list symbolic links
  -a  list also files beginning with a .
  -p  list with path
  -R  recursive all subdirectories
  -U  unsorted list, native directory order
arguments:
  PATTERN  shell pattern filenames
  REGEXP   Perl regular expression filenames