如何用findstr的结果设置变量 [英] How to set variable with the result of findstr
本文介绍了如何用findstr的结果设置变量的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想写一个批处理文件,搜索pdf文件,并找到它们有多少页,并循环所有页面。
I am trying to write a batch file which searches for pdf files and finds how many pages they have and loop all pages.
我写了以下内容。我可以找到文件,我甚至可以找到页面计数与一个工具名为pdftk。结果如下。
I wrote the following. I can find the files, I can even find the pagecounts with a tool named pdftk. The results is as below.
C:\Users\test\Documents\fishes\Fish_1.pdf
NumberOfPages: 5
如何设置一个值 5
?
@ECHO off
for /R %%i IN (*.pdf) DO (
ECHO %%i
"C:\Program Files (x86)\PDF Labs\PDFtk Server\bin\pdftk.exe" %%i dump_data | findstr NumberOfPages
set pagecount = findstr NumberOfPages ???
FOR /L %%j IN (1,1,%pagecount%) DO (
ECHO "page " + %%j
)
)
推荐答案
你已经有90%。使用FOR / F命令处理命令的结果。在命令提示符下输入 HELP FOR
You were already 90% there. Use the FOR /F command to process the results of a command. Type HELP FOR
from the command prompt for more info.
for /f "tokens=2" %%A in (
'"C:\Program Files (x86)\PDF Labs\PDFtk Server\bin\pdftk.exe" %%i dump_data ^| findstr NumberOfPages'
) do set numberOfPages=%%A
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