Provided by: tree_1.5.3-2_amd64 bug


       tree - list contents of directories in a tree-like format.


       tree  [-adfghilnopqrstuvxACDFNS]  [-L  level  [-R]] [-H baseHREF] [-T title] [-o filename]
       [--nolinks] [-P pattern] [-I pattern]  [--inodes]  [--device]  [--noreport]  [--dirsfirst]
       [--version] [--help] [--filelimit #] [directory ...]


       Tree  is  a  recursive directory listing program that produces a depth indented listing of
       files, which is colorized ala dircolors if the LS_COLORS environment variable is  set  and
       output is to tty.  With no arguments, tree lists the files in the current directory.  When
       directory arguments are given, tree lists all the files and/or directories  found  in  the
       given  directories  each in turn.  Upon completion of listing all files/directories found,
       tree returns the total number of files and/or directories listed.

       By default, when a symbolic link is encountered, the path that the symbolic link refers to
       is printed after the name of the link in the format:

           name -> real-path

       If the `-l' option is given and the symbolic link refers to an actual directory, then tree
       will follow the path of the symbolic link as if it were a real directory.


       Tree understands the following command line switches:

       --help Outputs a verbose usage listing.

              Outputs the version of tree.

       -a     All files are printed.   By  default  tree  does  not  print  hidden  files  (those
              beginning  with a dot `.').  In no event does tree print the file system constructs
              `.' (current directory) and `..' (previous directory).

       -d     List directories only.

       -f     Prints the full path prefix for each file.

       -i     Makes tree not print the indentation lines, useful when used  in  conjunction  with
              the -f option.

       -l     Follows  symbolic  links if they point to directories, as if they were directories.
              Symbolic links that will result in recursion are avoided when detected.

       -x     Stay on the current file-system only.  Ala find -xdev.

       -P pattern
              List only those files that match the wild-card pattern.  Note: you must use the  -a
              option  to  also consider those files beginning with a dot `.' for matching.  Valid
              wildcard operators  are  `*'  (any  zero  or  more  characters),  `?'  (any  single
              character),  `[...]'  (any  single  character  listed  between brackets (optional -
              (dash) for character range may be  used:  ex:  [A-Z]),  and  `[^...]'  (any  single
              character not listed in brackets) and `|' separates alternate patterns.

       -I pattern
              Do not list those files that match the wild-card pattern.

              Omits printing of the file and directory report at the end of the tree listing.

       -p     Print the file type and permissions for each file (as per ls -l).

       -s     Print the size of each file in bytes along with the name.

       -h     Print the size of each file but in a more human readable way, e.g. appending a size
              letter for kilobytes (K), megabytes (M), gigabytes (G), terrabytes  (T),  petabytes
              (P) and exabytes (E).

       -u     Print the username, or UID # if no username is available, of the file.

       -g     Print the group name, or GID # if no group name is available, of the file.

       -D     Print the date of the last modification time for the file listed.

              Prints the inode number of the file or directory

              Prints the device number to which the file or directory belongs

       -F     Append  a  `/'  for directories, a `=' for socket files, a `*' for executable files
              and a `|' for FIFO's, as per ls -F

       -q     Print non-printable characters in  filenames  as  question  marks  instead  of  the
              default caret notation.

       -N     Print non-printable characters as is instead of the default carrot notation.

       -v     Sort the output by version.

       -r     Sort the output in reverse alphabetic order.

       -t     Sort the output by last modification time instead of alphabetically.

              List directories before files.

       -n     Turn colorization off always, over-ridden by the -C option.

       -C     Turn  colorization  on  always,  using  built-in  color  defaults  if the LS_COLORS
              environment variable is not set.  Useful to colorize output to a pipe.

       -A     Turn on ANSI line graphics hack when printing the indentation lines.

       -S     Turn on ASCII line graphics (useful when using  linux  console  mode  fonts).  This
              option is now equivalent to `--charset=IBM437' and will eventually be depreciated.

       -L level
              Max display depth of the directory tree.

       --filelimit #
              Do not descend directories that contain more than # entries.

       -R     Recursively cross down the tree each level directories (see -L option), and at each
              of them execute tree again adding `-o 00Tree.html' as a new option.

       -H baseHREF
              Turn on HTML output, including HTTP references. Useful  for  ftp  sites.   baseHREF
              gives  the  base  ftp location when using HTML output. That is, the local directory
              may    be    `/local/ftp/pub',     but     it     must     be     referenced     as
              `ftp://hostname.organization.domain/pub'         (baseHREF         should        be
              `ftp://hostname.organization.domain'). Hint: don't use ANSI lines with this option,
              and  don't  give  more than one directory in the directory list. If you wish to use
              colors via CCS stylesheet, use the -C option in addition to this  option  to  force
              color output.

       -T title
              Sets the title and H1 header string in HTML output mode.

       --charset charset
              Set the character set to use when outputting HTML and for line drawing.

              Turns off hyperlinks in HTML output.

       -o filename
              Send output to filename.


       /etc/DIR_COLORS          System color database.
       ~/.dircolors             Users color database.


       LS_COLORS      Color information created by dircolors
       TREE_CHARSET   Character set for tree to use in HTML mode.
       LC_CTYPE       Locale for filename output.


       Steve Baker (
       HTML output hacked by Francesc Rocher (
       Charsets and OS/2 support by Kyosuke Tokoro (


       Tree  does not prune "empty" directories when the -P and -I options are used.  Tree prints
       directories as it comes to them, so cannot accumulate information on files and directories
       beneath the directory it is printing.

       The  -h option rounds to the nearest whole number unlike the ls implementation of -h which
       rounds up always.  The IEC standard names for powers of 2 cooresponding to  metric  powers
       of 10 (KiBi, et al.) are silly.

       Pruning  files  and  directories  with  the  -I,  -P  and --filelimit options will lead to
       incorrect file/directory count reports.

       Probably more.


       dircolors(1L), ls(1L), find(1L)