中国DOS联盟

如何去掉文件名的最后几个字符？

比如有个文件名为 host_1.1.1.1_200710301232.log
我想去掉“_200710301232”这几个字符，但是不去掉扩展名“.log”，
批处理怎么写呢？谢谢

[ Last edited by HAT on 2008-12-31 at 02:04 ]

@echo off
set var=host_1.1.1.1_200710301232.log
set var=%var:_200710301232=%
echo %var%&pause

Originally posted by zw19750516 at 2008-4-3 12:26 AM:
@echo off
set var=host_1.1.1.1_200710301232.log
set var=%var:_200710301232=%
echo %var%&pause

呃，这个，是这样的，我有一堆文件，我想去掉文件名的最后15个字符，这15个字符不全是“_200710301232”，只是字符数目一样多，因此不能这样直接替换。

假设所有文件在d盘a文件夹中：

@echo off

for /f "delims=.log tokens=1" %%i in ('dir /a-d /b d:\a') do (

     set var=%%i

     setlocal enabledelayedexpansion

     set var=!var:,-15!

     echo !var!

     endlocal

)

pause&goto :eof 

[ Last edited by zw19750516 on 2008-4-3 at 12:49 AM ]

自己测试：

@echo off

for /f "tokens=1,2,3 delims=_" %%i in ('dir/b *.log') do echo %%i_%%j_%%k - %%i_%%j%%~xk

pause

[ Last edited by zh159 on 2008-4-3 at 12:46 AM ]

@echo off
for /f "delims=" %%i in ('dir/b /a-d *.log') do set a=%%i&call echo %%a:~0,-15%%%%~xi
pause

Originally posted by zh159 at 2008-4-3 12:44 AM:
自己测试：

@echo off

for /f "tokens=1,2,3 delims=_" %%i in ('dir/b *.log') do echo %%i_%%j_%%k - %%i_%%j%%~xk

pause

[ Last edited by zh159 on 2008-4-3 at 12:46 AM ]

这个不错，受教了，^_^

学习了，是个好东西。

试试这个看行不行!

@echo off & setlocal enabledelayedexpansion

for /f "delims=" %%a in ('dir /b ".\*.log"') do set filename=%%~na ren %%a !filename:~0,-13!.log

晕,没有看发贴的时间!

[ Last edited by nanoking on 2008-12-30 at 07:57 ]