请教一个批处理的含义

有阴也有阳

请教下面一个批处理的含义：

@echo off
SHSUCDX /D:?PATACD01 /D:?SATACD01 /D:?SATACD02 /D:?SATACD03 /D:?USB-CD
findcd /s>nul
for %%i in (z,y,x,w,v,u,t,s,r,q,p,o,n,m,l,k,j,i,h,g,f,e,d,c) do if exist %%i:......

特别是其中的：

SHSUCDX /D:?PATACD01 /D:?SATACD01 /D:?SATACD02 /D:?SATACD03 /D:?USB-CD

是啥意思？

还有：

findcd /s>nul

是啥意思？

请高手赐教，谢谢！！！

等了半天，没有人回答，自己百度的资料：

@ECHO OFF //关闭回显

SHSUCDX /D:?PATACD01 // 这里的“？”是防止光驱设备名不当而出现错误信息；如果设备名不是IDE-CD, SHSUCDX就会忽略这一错误。

SHSUCDX /D:?PATACD01 /D:?SATACD01 /D:?SATACD02 /D:?SATACD03 /D:?USB-CD // 整行是寻找光驱设备从IDE——CD、SATA——CD

到USB——CD

问一句“：这里大写的字母‘D’是代表设备的意思吗？是单词设备的缩写吗？”

findcd /s>nul //找到光驱盘符

for %%i in (z,y,x,w,v,u,t,s,r,q,p,o,n,m,l,k,j,i,h,g,f,e,d,c) do //从C——Z中找到光驱盘符

nttwqz

该才在微博看到一头奶牛自己喝自己的奶，楼主就来了个自己的问题自己答，哈哈哈哈

有阴也有阳

nttwqz 发表于 2016-9-19 21:08
该才在微博看到一头奶牛自己喝自己的奶，楼主就来了个自己的问题自己答，哈哈哈哈

        等了半天没人回答，就去百度，以上内容百度来的，但还有一事不明：

        这里大写的字母‘D’是代表设备的意思吗？是单词设备的缩写吗？

nttwqz

有阴也有阳 发表于 2016-9-19 21:34
等了半天没人回答，就去百度，以上内容百度来的，但还有一事不明：

        这里大写的字母‘ ...

像这么“低级”的问题，我也不知道，印象中好像在某个Dos盘里见过这个SHSUCDX，你看下它的帮助不就可以了，即使是英文的也可以翻译。。。

nttwqz

Command: shsucdx

  SHSUCDX is an unloadable CD-ROM redirector substitute for MSCDEX.
  It supports up to 10 drives. Each drive is single-sector buffered and
  the last 10 directory entries are cached. Each unit from each driver
  can be assigned a specific drive letter.
Syntax:

  shsucdx /D[:][?|*]driver[,[letter][,[unit][,[max]]]] [switches]
        DRIVER is the name of the device driver installed to control
          the CD-ROM drive. Prefixing the driver with '?' will
          silently ignore it if it does not exist (or is not actually a
          CD-ROM); prefixing with '*' will also ignore it, but a
          drive will be reserved (see below).
        LETTER is the first drive letter to assign to the units on
          this driver. The  default is the first available letter.
          Note: the drive letters assigned to subsequent units will
          always be higher than those assigned to previous units.
        UNIT is the first unit on this driver to be assigned a drive.
          Unit 0 is the default.
        MAX is the maximum number of units on this driver to be assigned
          drives. The default is all units (or all remaining units, if
          UNIT is given).
[Main menu] [top] (Syntax) [Options] [Comments] [Examples] [See also] [File]

Options:

  /D  Driver: This option is used to specify the name of the device
      driver. It can also indicate which unit(s) should be assigned and
      to what letter.
      Drive manipulation: At install time, /D can also be used to
      reserve space for additional drives. Use a single digit to indicate
      how many drives should be reserved (eg: /D1). (If you should happen
      to have a device driver name with a single digit, use the '?'
      prefix.) After installation, the same option will remove the
      drive(s) that were last assigned. It is possible to specify both
      forms of /D, in which case the current drive(s) will be removed,
      then the new drive(s) added. You can only use a drive letter which
      is smaller or even with the letter in LASTDRIVE / LASTDRIVEHIGH.
  /L  Letter: This option is an alternative to the LETTER component of
      /D, which it must follow (ie: /D:driver /L:letter). It can also be
      used to return the number of drives installed (/L:0, will return 255
      if not installed) and the letter of each assigned drive (/L:1, /L:2,
      etc., with A: = 1 and 255 if the drive is not assigned). You can only
      use a drive letter which is smaller or even with the letter in
      LASTDRIVE / LASTDRIVEHIGH.
  /C  Uses conventional instead of high memory.
  /V  Memory statistics: When this option is used at installation, a
      summary of memory usage will be displayed. This summary includes:
        Static   Code and variables
        Dynamic  Data for each drive and paragraph rounding
        Total    Overall memory usage
      Information: When used with /?, or after installation, this
      option displays the compile- and run-time options of SHSUCDX. This
      information includes:
        8086/386      The minimum processor required
        CD root form  TRUENAME will return \\D.\A.\ instead of D:\
        High Sierra   The original format for the CD file system
        Joliet        The Windows format for long names
        Image on CD   Enables access to an image which is itself on a CD
  /~    Tilde usage: The ISO standard allows for CDs to have names up to
        31 characters and Joliet can have names up to 64 characters. When
        this is reduced to 8.3 for DOS it may lead to duplicated entries.
        This option will remove the duplication by appending a tilded
        number after the name (similar to what Windows does). By default,
        tildes are off.
        This option is also available after installation. By itself it will
        toggle the status (ie. if tildes are currently on, /~ will turn
        them off and vice versa). Tildes can be explicitly turned on or
        off by adding a '+' or '-' sign (ie: /~+ will turn tildes on,
        irrespective of the current state). You do not have these problems
        when using the program DOSLFN.
  /R  Removes Read-only attribute.
  /I  Install anyway even if another redirector is present.
  /U  Unloads the shsucdx driver from memory.
  /Q  Quiet. Prevents display of the sign-on banner (copyright notice).

有阴也有阳

nttwqz 发表于 2016-9-19 21:50
Command: shsucdx

  SHSUCDX is an unloadable CD-ROM redirector substitute for MSCDEX.

谢谢热心回复！！！

itdiqdl

顶你！辛苦了～












数据库技术:http://www.huatian123.com/forum-37-1.html

vaf

好象此批处理源于微软的 DOS 启动盘.

alltask

%~dpI       - 仅将 %I 扩展到一个驱动器号和路径
     %~nxI       - 仅将 %I 扩展到一个文件名和扩展名
     %~fsI       - 仅将 %I 扩展到一个带有短名的完整路径名
     %~dp$PATH:I - 搜索列在路径环境变量的目录，并将 %I 扩展
                   到找到的第一个驱动器号和路径。
     %~ftzaI     - 将 %I 扩展到类似输出线路的 DIR
这些参数怎么个意思，能举个简单的例子吗？

nttwqz

alltask 发表于 2016-10-21 20:17
%~dpI       - 仅将 %I 扩展到一个驱动器号和路径
     %~nxI       - 仅将 %I 扩展到一个文件名和扩展名
...

1. echo off
   
2. echo %~dp0
   
3. pause

复制代码

把上面的批处理在不同目录运行下你就明白了