使用xcopy通过* .extension复制多个文件 [英] Copying multiple files by *.extension with xcopy

问题描述

我正在制作一个批处理脚本，以将所有.doc，.pdf，.xls等从磁盘复制到Pendrive.

我当前的代码如下:

@echo off
Title ""

::All Docs
 XCOPY C:\*.doc W:\xdatabase /C /S /I /F /H > W:\database\XC\AllInf.txt

::All PDFs
 XCOPY C:\*.pdf W:\xdatabase /C /S /I /F /H >> W:\database\XC\AllInf.txt

::All WRI
 XCOPY C:\*.wri W:\xdatabase /C /S /I /F /H >> W:\database\XC\AllInf.txt

::All TXT
 XCOPY C:\*.txt W:\xdatabase /C /S /I /F /H >> W:\database\XC\AllInf.txt

::All PPT
 XCOPY C:\*.ppt W:\xdatabase /C /S /I /F /H >> W:\database\XC\AllInf.txt

::All XLS
 XCOPY C:\*.xls W:\xdatabase /C /S /I /F /H >> W:\database\XC\AllInf.txt

问题是:如何添加更多扩展名，但避免代码中的所有重复项?

解决方案

在所有编程语言中始终为true:如果必须连续执行多次操作，请使用循环.

@echo off
Title ""

for %%e in (doc pdf wri txt ppt xls) do (
    XCOPY "C:\*.%%e" W:\xdatabase /C /S /I /F /H > W:\database\XC\AllInf.txt
)

在批处理脚本中，for循环可能很棘手.一个方便的指南在这里: http://ss64.com/nt/for.html

I'm making a batch script to copy all .doc, .pdf, .xls etc from disk to a pendrive.

My current code below:

@echo off
Title ""

::All Docs
 XCOPY C:\*.doc W:\xdatabase /C /S /I /F /H > W:\database\XC\AllInf.txt

::All PDFs
 XCOPY C:\*.pdf W:\xdatabase /C /S /I /F /H >> W:\database\XC\AllInf.txt

::All WRI
 XCOPY C:\*.wri W:\xdatabase /C /S /I /F /H >> W:\database\XC\AllInf.txt

::All TXT
 XCOPY C:\*.txt W:\xdatabase /C /S /I /F /H >> W:\database\XC\AllInf.txt

::All PPT
 XCOPY C:\*.ppt W:\xdatabase /C /S /I /F /H >> W:\database\XC\AllInf.txt

::All XLS
 XCOPY C:\*.xls W:\xdatabase /C /S /I /F /H >> W:\database\XC\AllInf.txt

The question is: How can I add more extensions but avoid all that duplication in the code?

解决方案

Always true, in all programming languages: If you have to do a thing multiple times in a row, use a loop.

@echo off
Title ""

for %%e in (doc pdf wri txt ppt xls) do (
    XCOPY "C:\*.%%e" W:\xdatabase /C /S /I /F /H > W:\database\XC\AllInf.txt
)

The for loop can be tricky in batch scripting. A handy guide is here: http://ss64.com/nt/for.html

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