usage: tree [-adfghilnpqrstuvxACDFNS] [-H baseHREF] [-T title ] [-L level [-R]][-P pattern] [-I pattern] [-o filename] [--version] [--help] [--inodes][--device] [--noreport] [--nolinks] [--dirsfirst] [--charset charset][--filelimit #] [<directory list>]-a All files are listed.-d List directories only.-l Follow symbolic links like directories.-f Print the full path prefix for each file.-i Don't print indentation lines.-q Print non-printable characters as '?'.-N Print non-printable characters as is.-p Print the protections for each file.-u Displays file owner or UID number.-g Displays file group owner or GID number.-s Print the size in bytes of each file.-h Print the size in a more human readable way.-D Print the date of last modification.-F Appends '/', '=', '*', or '|' as per ls -F.-v Sort files alphanumerically by version.-r Sort files in reverse alphanumeric order.-t Sort files by last modification time.-x Stay on current filesystem only.-L level Descend only level directories deep.-A Print ANSI lines graphic indentation lines.-S Print with ASCII graphics indentation lines.-n Turn colorization off always (-C overrides).-C Turn colorization on always.-P pattern List only those files that match the pattern given.-I pattern Do not list files that match the given pattern.-H baseHREF Prints out HTML format with baseHREF as top directory.-T string Replace the default HTML title and H1 header with string.-R Rerun tree when max dir level reached.-o file Output to file instead of stdout.--inodes Print inode number of each file.--device Print device ID number to which each file belongs.--noreport Turn off file/directory count at end of tree listing.--nolinks Turn off hyperlinks in HTML output.--dirsfirst List directories before files.--charset X Use charset X for HTML and indentation line output.--filelimit # Do not descend dirs with more than # files in them.