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中国DOS联盟论坛 » DOS批处理 & 脚本技术（批处理室） » [Help] Select and delete time-named files and classify them View 2,669　Replies 41

Floor 31 Posted 2008-05-26 15:26　·　中国江苏南京联通

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Silver member 【26933062】, if you see this, please help improve it!!! Thanks

When testing that day, a case was missed, that is, now it is June, so we should delete the files and folders before 200801!

But the current situation is that the things before 200701 are deleted! This is incorrect

It seems to be the reason for this section of the command, help analyze it (it seems that the date conversion was also done for the situation like if %mm% gtr 0)

if %mm% leq 0 set /a nn=1
set /a m=(12+mm)%%12,y=yy-nn
if %m% equ 0 set m=12
set m=0%m%
set yy=%y%%m:~-2%

Dear experts, please help, thanks

Floor 32 Posted 2008-05-26 15:32　·　中国江苏南京联通

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Originally posted by 26933062 at 2008-5-23 04:10 PM:
The experience is: a large number of practices, and read more others' posts
To run a bat in other positions, more issues need to be considered. The following code is not tested...
:
@echo off&setlocal enabledelayedexpansi ... 



This is the final P

Floor 33 Posted 2008-05-26 15:39　·　中国江苏南京联通

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Hehe, I figured it out by myself. Just add one more case before if %mm% leq 0 set /a nn=1. Add: if %mm% gtr 0 set /a nn=0

Floor 34 Posted 2008-05-26 15:42　·　中国湖南娄底电信

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Originally posted by easonL at 2008-5-26 15:39:
Hehe, I figured it out myself.
Just add another case before if %mm% leq 0 set /a nn=1.

Add:
if %mm% gtr 0 set /a nn=0

That's incorrect.
Modify here:
for /f "tokens=1,2 delims=:-\/. " %%a in ("%date%") do (
set /a yy=%%a,mm=100%%b%%100-5
)

致精致简！

Floor 35 Posted 2008-05-26 15:58　·　中国江苏南京电信

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Originally posted by 26933062 at 2008-5-26 03:42 PM:

That's not right,
Modify here
for /f "tokens=1,2 delims=:-\/. " %%a in ("%date%") do (
set /a yy=%%a,mm=100%%b%%100-5
)

Ah? You don't seem to have changed anything. Comparing with the original, I can't see it, heh heh

Floor 36 Posted 2008-05-26 16:16　·　中国江苏南京电信

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Silver member 【26933062】Big shot, and by the way, why is my modification like that incorrect? Please give a little analysis, please!

無求一生光輝唯朢鬥志不會斷

Floor 37 Posted 2008-05-26 16:20　·　中国湖南娄底电信

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It seems there is indeed an error in the calculation part. Let me think about it.

致精致简！

Floor 38 Posted 2008-05-26 16:25　·　中国湖南娄底电信

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That's right! What problem are you having now?

致精致简！

Floor 39 Posted 2008-05-26 16:30　·　中国江苏南京联通

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There is a mistake! Let me describe the problem:

If it's June now, then we should delete the files and folders before 200801, right?

But it's not like that now. The result is that only the files and folders before 200701 are deleted.

There seems to be a problem with the time calculation! You can take a look

無求一生光輝唯朢鬥志不會斷

Floor 40 Posted 2008-05-26 16:33　·　中国江苏南京联通

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Wait a minute, I'll double - check it carefully!

無求一生光輝唯朢鬥志不會斷

Floor 41 Posted 2008-05-26 16:35　·　中国湖南娄底电信

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How is that possible?
You test the following code...
:



@echo off

::The following is assuming the current date is June 2008, you can modify it yourself for testing

set date=2008/6

::::::::::::::::::::::::::::::

for /f "tokens=1,2 delims=:-\/. " %%a in ("%date%") do (

   set /a yy=%%a,mm=100%%b%%100-5

)

if %mm% leq 0 set /a nn=1

set /a m=(12+mm)%%12,y=yy-nn

if %m% equ 0 set m=12

set m=0%m%

set yy=%y%%m:~-2%

echo.&echo Delete files before %yy% (including %yy%)

echo.&pause

致精致简！

Floor 42 Posted 2008-05-26 16:38　·　中国江苏南京联通

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Swe sweat~~~~~~~~~~
Why is the test result different from just now! It should be no problem!
I'm really sorry! I wasted your time

But it's really strange ah, I'll take a look at what happened just now by myself

無求一生光輝唯朢鬥志不會斷

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