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【Shell】批处理获得启动分区号

作者: / 发布于2014/5/22/ 1028


	@ECHO OFF
	:: BOOTDRV.BAT
	:: Places the boot drive letter in environment variable BOOTDRV
	::
	:: Written by Rob van der Woude
	:: http://www.xs4all.nl/~robw/rob/
	::
	:: Limitation: Uses COMSPEC to determine boot drive, so if a different
	:: command processor was specified by either the SHELL
	:: command or by a SET COMSPEC=... command, this batch file
	:: will be fooled and display the wrong drive.
	::
	SET BOOTDRV=
	ECHO %COMSPEC% | CHOICE /C:ABCDEFGHIJKLMNOPQRSTUVWXYZ > NUL
	IF ERRORLEVEL 1 SET BOOTDRV=A
	IF ERRORLEVEL 2 SET BOOTDRV=B
	IF ERRORLEVEL 3 SET BOOTDRV=C
	IF ERRORLEVEL 4 SET BOOTDRV=D
	IF ERRORLEVEL 5 SET BOOTDRV=E
	IF ERRORLEVEL 6 SET BOOTDRV=F
	IF ERRORLEVEL 7 SET BOOTDRV=G
	IF ERRORLEVEL 8 SET BOOTDRV=H
	IF ERRORLEVEL 9 SET BOOTDRV=I
	IF ERRORLEVEL 10 SET BOOTDRV=J
	IF ERRORLEVEL 11 SET BOOTDRV=K
	IF ERRORLEVEL 12 SET BOOTDRV=L
	IF ERRORLEVEL 13 SET BOOTDRV=M
	IF ERRORLEVEL 14 SET BOOTDRV=N
	IF ERRORLEVEL 15 SET BOOTDRV=O
	IF ERRORLEVEL 16 SET BOOTDRV=P
	IF ERRORLEVEL 17 SET BOOTDRV=Q
	IF ERRORLEVEL 18 SET BOOTDRV=R
	IF ERRORLEVEL 19 SET BOOTDRV=S
	IF ERRORLEVEL 20 SET BOOTDRV=T
	IF ERRORLEVEL 21 SET BOOTDRV=U
	IF ERRORLEVEL 22 SET BOOTDRV=V
	IF ERRORLEVEL 23 SET BOOTDRV=W
	IF ERRORLEVEL 24 SET BOOTDRV=X
	IF ERRORLEVEL 25 SET BOOTDRV=Y
	IF ERRORLEVEL 26 SET BOOTDRV=Z
	IF "%BOOTDRV%"=="" ECHO Error checking boot drive
	IF NOT "%BOOTDRV%"=="" ECHO Boot drive is %BOOTDRV%:

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