仅提取文件名中的数字

Question

我只想在 .txt 文件中打印文件名中的数字。

C:\Users\asd123\Desktop\qwerty - 123.pdf  
C:\Users\asd123\Desktop\qw erty_456.pdf      
C:\Users\asd123\Desktop\qwe rt y789.pdf

现在，我使用：

cd C:\Users\asd123\Desktop\  
for %%a in (*.pdf) do echo %%~na >> C:\Users\asd123\Desktop\file_names.txt

我需要在此代码中添加什么才能实现我的愿望？

Answer 1

试试这个：

echo | sed -n 's/[^0-9]//gp'

Answer 2

已解决！

通过使用 Dave Benham 的 JREPL.BAT

和STRIP.CMD：

cd C:\Users\asd123\Desktop\
@echo off
echo Cleaning out old data
:: Remove old instances of output files in order not to create duplication in the files
del file_name_list_numerics.txt
echo Done!
echo Building file list.
for %%a in (*.pdf) do echo %%~na >> C:\Users\asd123\Desktop\file_names.txt
echo Done!
echo Stripping non-numeric characters from file list.
call jrepl "\D" "" /f file_names.txt /o -
echo Done!
echo Removing empty lines.
For /F "delims=" %%A in (file_names.txt) Do Echo %%A >> C:\Users\asd123\Desktop\file_name_list_numerics.txt
echo Done!
echo Cleaning up temp data.
del file_names.txt
echo Done!

仅提取文件名中的数字

Extract only the numbers in file name

batch-file

batch-rename