Transient Program Area(英语:CP/M#Transient_Program_Area) (TPA) (area available for use either by the running application or the transient portion of COMMAND.COM)
SpartaDOS X(英语:SpartaDOS_X) (一个用于Atari电脑的相似实现)
參考資料
^MS-DOS/COMMAND.ASM at master · microsoft/MS-DOS · GitHub. [2021-04-23]. (原始内容存档于2021-02-27).
^ 3.03.13.23.33.43.53.63.7Paul, Matthias R. NWDOS-TIPs — Tips & Tricks rund um Novell DOS 7, mit Blick auf undokumentierte Details, Bugs und Workarounds. MPDOSTIP. Release 157 3. 1997-07-30 [1994-05-01] [2014-08-06]. (原始内容存档于4 November 2016) (德语). (NB. The provided link points to a HTML-converted version of the NWDOSTIP.TXT, which is part of the MPDOSTIP.ZIP collection.) [1]
^ 4.04.1Chapter 7: Batch Processing. Caldera DR-DOS 7.02 User Guide. Caldera, Inc. 1998 [1993, 1997] [2017-09-11]. (原始内容存档于2017-09-11).
^Paul, Matthias R. BATTIPs — Tips & Tricks zur Programmierung von Batchjobs. MPDOSTIP. 1997-05-01. Kapitel 7: ERRORLEVEL abfragen [1993-10-01] [2017-08-23]. (原始内容存档于2017-08-23) (德语). (NB. BATTIPS.TXT is part of MPDOSTIP.ZIP. The provided link points to a HTML-converted older version of the BATTIPS.TXT file.) [2]
^Paul, Matthias R. Auer, Eric , 编. Exitcodes (errorlevels) of DOS utilities. 2003 [1997] [2017-09-11]. (原始内容存档于11 September 2017). [3]
^Allen, William; Allen, Linda. Windows 95/98/ME ERRORLEVELs. (原始内容存档于2005-10-29).
^ 9.09.19.2Brothers, Hardin; Rawson, Tom; Conn, Rex C.; Paul, Matthias R.; Dye, Charles E.; Georgiev, Luchezar I. 4DOS 8.00 online help. 2002-02-27. […] Multiple Commands: You can type several commands on the same command line, separated by a caret [^]. For example, if you know you want to copy all of your .TXT files to drive A: and then run CHKDSK to be sure that drive A's file structure is in good shape, you could enter the following command: C:\>COPY *.TXT A: ^ CHKDSK A: You may put as many commands on the command line as you wish, as long as the total length of the command line does not exceed 511 characters. You can use multiple commands in aliases and batch files as well as at the command line. If you don't like using the default command separator, you can pick another character using the SETDOS /C command or the CommandSep directive in 4DOS.INI. […] SETDOS /C: (Compound character) This option sets the character used for separating multiple commands on the same line. The default is the caret [^]. You cannot use any of the redirection characters [<>|], or the blank, tab, comma, or equal sign as the command separator. The command separator is saved by SETLOCAL and restored by ENDLOCAL. This example changes the separator to a tilde [~]: C:\>SETDOS /C~ (You can specify either the character itself, or its ASCII code as a decimal number, or a hexadecimal number preceded by 0x.) […] CommandSep = c (^): This is the character used to separate multiple commands on the same line. […] Special Character Compatibility: If you use two or more of our products, or if you want to share aliases and batch files with users of different products, you need to be aware of the differences in three important characters: the Command Separator […], the Escape Character […], and the Parameter Character […]. The default values of each of these characters in each product is shown in the following chart: […] Product, Separator, Escape Parameter […] 4DOS: ^, ↑, & […] 4OS2, 4NT, Take Command: &, ^, $ […] (The up-arrow [↑] represents the ASCII Ctrl-X character, numeric value 24.) […]
^Caldera DR-DOS 7.02 User Guide. Caldera, Inc. 1998 [1993, 1997] [2013-08-10]. (原始内容存档于2016-11-04).
^Paul, Matthias R. MSDOSTIPs — Tips für den Umgang mit MS-DOS 5.0-7. MPDOSTIP. 1997-07-01 [1994-01-01] [2013-10-25]. (原始内容存档于2017-08-22) (德语). (NB. MSDOSTIP.TXT is part of MPDOSTIP.ZIP, maintained up to 2001 and distributed on many sites at the time. The provided link points to a HTML-converted older version of the MSDOSTIP.TXT file.) [4]
^Paul, Matthias R. Hinweise zu JPSofts 4DOS 5.5b/c, 5.51, 5.52a und NDOS. MPDOSTIP. 1997-05-01 [1995-03-01] [2015-05-08]. (原始内容存档于2016-11-04) (德语). (NB. The provided link points to a HTML-converted version of the 4DOS5TIP.TXT file, which is part of the MPDOSTIP.ZIP collection.) [5]
^Schulman, Andrew; Brown, Ralf D.; Maxey, David; Michels, Raymond J.; Kyle, Jim. Undocumented DOS: A programmer's guide to reserved MS-DOS functions and data structures - expanded to include MS-DOS 6, Novell DOS and Windows 3.1 2. Reading, Massachusetts, USA: Addison Wesley. 1994: 623, 626 [November 1993]. ISBN 0-201-63287-X. 含有內容需登入查看的頁面 (link) (xviii+856+vi pages, 3.5"-floppy) Errata: [6][7]
延伸阅读
Cooper, Jim. Special Edition Using MS-DOS 6.22 3. Que Publishing. 2001. ISBN 978-0-78972573-8.
Wolverton, Van. MS-DOS Commands: Microsoft Quick Reference 4th revised. Microsoft Press. 1990. ISBN 978-1-55615289-4.
Paul, Matthias R. Re: Random Lockups with DR-DOS 7.03. FidoNet conference: ALT_DOS. 2004-06-17 [2019-04-28]. (原始内容存档于2019-04-28). […] all MS-DOS versions prior to Windows 95 […] used a COM style COMMAND.COM file which has a special signature at the start of the file […] queried by the MS-DOS BIOS before it loads the shell, but not by the DR-DOS BIOS […] COMMAND.COM would […] check that it is running on the "correct" DOS version, so if you would load their COMMAND.COM under DR-DOS, you would receive a "Bad version" error message and their COMMAND.COM would exit, so DR-DOS would […] display an error message "Bad or missing command interpreter" (if DR-DOS was trying to load the SHELL= command processor after having finished CONFIG.SYS processing). In this case, you could enter the path to a valid DR-DOS COMMAND.COM (C:\DRDOS\COMMAND.COM) and everything was fine. Now, things have changed since MS-DOS 7.0 […] COMMAND.COM has internally become an EXE style file, so there is no magic […] signature […] to check […] thus no way for DR-DOS to rule out an incompatible COMMAND.COM. Further, their COMMAND.COM no longer does any version checks, but […] does not work under DR-DOS […] just crashes […] the PC DOS COMMAND.COM works fine under DR-DOS […] [8][9]
外部連結
GitHub上的COMMAND.ASM頁面 – Source code to COMMAND.COM version 2.11 released by Microsoft as part of MS-DOS 2.0
GitHub上的COMMAND.ASM頁面 – Source code to COMMAND.COM version 1.17 released by Microsoft as part of MS-DOS 1.25
FreeCom (页面存档备份,存于互联网档案馆) – COMMAND.COM implementation of FreeDOS