tree

TheReactOStree command
Developer(s)	Steve Baker,DR,Microsoft,IBM,Itautec,Datalight,Toshiba, Dave Dunfield, Asif Bahrainwala
Written in	Unix-like,FreeDOS,ReactOS:C
Operating system	Unix,Unix-like,MS-DOS,PC DOS,FlexOS,SISNE plus,ROM-DOS,4690 OS,PTS-DOS,OS/2,eComStation,ArcaOS,Windows,DR DOS,FreeDOS,ReactOS
Platform	Cross-platform
Type	Command
License	Unix, Unix-like, FreeDOS, ReactOS:GPLv2

Incomputing,tree is a recursivedirectory listingcommand orprogram that produces a depth-indented listing of files. Originating in PC- andMS-DOS, it is found inDigital ResearchFlexOS,^[1]IBM/Toshiba4690 OS,^[2]PTS-DOS,^[3]FreeDOS,^[4] IBMOS/2,^[5]Microsoft Windows,^[6] andReactOS. A version forUnix andUnix-like systems is also available.

Thetree command is frequently used as part of atechnical support scam, where the command is used to occupy the command prompt screen, while the scammer, pretending to be technical support, types additional text that is supposed to look like output of the command.^[7]

With no arguments,tree lists the files in thecurrent directory. When directory arguments are given,tree lists all the files or directories found in the given directories each in turn. Upon completion of listing all files and directories found,tree returns the total number of files and directories listed. There are options to change the characters used in the output, and to use color output.^[8]

The command is available inMS-DOS versions 3.2 and later andIBM PC DOS releases 2 and later.^[9]Digital ResearchDR DOS 6.0,^[10]ItautecSISNE plus,^[11] andDatalightROM-DOS^[12] include an implementation of thetree command.

TheTree Command for Linux was developed by Steve Baker.^[13] TheFreeDOS version was developed by Dave Dunfield^[14] and theReactOS version was developed by Asif Bahrainwala.^[15] All three implementations are licensed under theGNU General Public License.

The Tree command is also available inmacOS as a formula installed via the command lineHomebrew package manager.^[16]

$treepath/to/folder/path/to/folder/├── a-first.html├── b-second.html├── subfolder│   ├── readme.html│   ├── code.cpp│   └── code.h└── z-last-file.html1 directories, 6 files

• dir
• ls
• pstree
• List of Unix commands
• List of DOS commands

• Cooper, Jim (2001).Special Edition Using MS-DOS 6.22, Third Edition.Que Publishing.ISBN 978-0789725738.
• Kathy Ivens; Brian Proffit (1993).OS/2 Inside & Out.Osborne McGraw-Hill.ISBN 978-0078818714.
• John Paul Mueller (2007).Windows Administration at the Command Line for Windows Vista, Windows 2003, Windows XP, and Windows 2000.John Wiley & Sons.ISBN 978-0470165799.

Wikibooks has a book on the topic of:Guide to Windows Commands

• The Tree Command for Linux HomepageNew repository
• tree | Microsoft Docs

• Windows commands
• External DOS commands
• OS/2 commands
• ReactOS commands
• Unix file system-related software

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