| 词条 | Format (command) |
| 释义 |
| name = format | logo = | screenshot = Ms-dosformat.png | screenshot size = | caption = The MS-DOS format command | developer = | released = | latest release version = | latest release date = | operating system = RT-11, 86-DOS, MS-DOS, PC DOS, OS/2, ISIS-II, TRIPOS, AmigaDOS, OS-9, FlexOS, SpartaDOS X, 4690 OS, FreeDOS, PTS-DOS, Microsoft Windows, ReactOS | genre = Command | license = | website = }} In computing, The command is also available in ISIS-II,[1] TRIPOS[2], AmigaDOS[3], OS-9[4], FlexOS[5], SpartaDOS X,[6] 4690 OS[7], PTS-DOS,[8] and in the DEC RT-11[9] operating system. The FreeDOS version was developed by Brian E. Reifsnyder.[10] OverviewThe command performs the following actions by default on a floppy disk, hard disk drive, solid state (USB), or other magnetic medium (it will not perform these actions on optical media):
Optionally (by adding the /S, for "system" switch), Format can also install a Volume Boot Record. With this option, Format writes bootstrap code to the first sector of the volume (and possibly elsewhere as well). Format always writes a BIOS Parameter Block to the first sector, with or without the /S option. Another option (/Q) allows for what Microsoft calls "Quick Format". With this option the command will not perform steps 2 and 3 above.{{Citation needed|date=April 2009}} Typing "Format" with no parameters in MS-DOS 3.2 or earlier would automatically, without prompting the user, format the current drive; however in MS-DOS 3.3 and later it would simply produce the error: "required parameter missing". Any storage device must have its medium structured to be useful. This process is referred to{{by whom|date=August 2014}} as "creating a filesystem" in Unix, Linux, or BSD.[14] Under these systems different commands are used. The commands can create many kinds of file systems, including those used by DOS, Windows, and OS/2. See also
Notes1. ^ISIS II Users Guide [15]2. ^https://www.pagetable.com/docs/amigados_tripos/tripos_manuals.pdf 3. ^https://archive.org/details/1988-rugheimer-spanik-amigados-quick-reference 4. ^{{cite book|author=Paul S. Dayan|year=1992|title=The OS-9 Guru - 1 : The Facts|publisher=Galactic Industrial Limited|isbn=0-9519228-0-7}} 5. ^http://www.bitsavers.org/pdf/digitalResearch/flexos/1073-2003_FlexOS_Users_Guide_V1.3_Nov86.pdf 6. ^SpartaDOS X 4.48 User Guide 7. ^https://archive.org/details/4690OSV6r2UsersGuide/page/n169 8. ^{{cite web |title=PTS-DOS 2000 Pro User Manual |publisher=Paragon Technology GmbH |location=Buggingen, Germany |date=1999 |url=http://download.paragon-software.com/doc/manual_dos_eng.pdf |access-date=2018-05-12 |dead-url=no |archive-url=https://web.archive.org/web/20180512094512/http://download.paragon-software.com/doc/manual_dos_eng.pdf |archive-date=2018-05-12}} 9. ^http://paleoferrosaurus.com/beta/documents/rt11help.html#FORMAT 10. ^http://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/distributions/1.2/repos/pkg-html/format.html 11. ^{{cite web|first1=Tim|last1=Paterson|authorlink1=Tim Paterson|title=Microsoft DOS V1.1 and V2.0: /msdos/v20source/FORMAT.TXT|url=http://www.computerhistory.org/atchm/microsoft-research-license-agreement-msdos-v1-1-v2-0/|publisher=Computer History Museum, Microsoft|date=2013-12-19|origyear=1983|accessdate=2014-03-25}} (NB. While the publishers claim this would be MS-DOS 1.1 and 2.0, it actually is SCP MS-DOS 1.25 and a mixture of Altos MS-DOS 2.11 and TeleVideo PC DOS 2.11.) 12. ^{{Cite web|url=http://www.computerhistory.org/atchm/microsoft-ms-dos-early-source-code/|title=Microsoft MS-DOS early source code|series=Software Gems: The Computer History Museum Historical Source Code Series|first=Len|last=Shustek|date=2014-03-24|accessdate=2014-03-29}} (NB. While the author claims this would be MS-DOS 1.1 and 2.0, it actually is SCP MS-DOS 1.25 and a mixture of Altos MS-DOS 2.11 and TeleVideo PC DOS 2.11.) 13. ^{{cite web|url=http://blogs.technet.com/b/microsoft_blog/archive/2014/03/25/microsoft-makes-source-code-for-ms-dos-and-word-for-windows-available-to-public.aspx|title=Microsoft makes source code for MS-DOS and Word for Windows available to public|date=2014-03-25|first=Roy|last=Levin|work=Official Microsoft Blog|accessdate=2014-03-29}} (NB. While the author claims this would be MS-DOS 1.1 and 2.0, it actually is SCP MS-DOS 1.25 and a mixture of Altos MS-DOS 2.11 and TeleVideo PC DOS 2.11.) 14. ^{{man|8|newfs|FreeBSD|EXAMPLE section}} 15. ^1 The directory entries get filled with 0x00 since MS-DOS 1.25 and PC DOS 2.0. If the Format command line option /O is provided, the first byte of each dire entry is set to 0xE5h to create a FAT format useable by PC DOS 1.0-1.1. However, not giving /O will significantly speed up directory searches under MS-DOS 1.25 and PC DOS 2.0 and higher. Older versions of MS-DOS, PC DOS, and 86-DOS only supported the 0xE5 marker. ReferencesExternal links
4 : External DOS commands|OS/2 commands|Windows commands|Hard disk software |
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