China DOS Union

Suppose I have the following 2 files

1.txt

HPQ	CD4E1902

Pavilion	06D652A4

Lenovo	5237B729

LEGEND	7B06BD13

IBM	D7A77612

TOSHIBA	A16F9D62

FUJITSU	10045CFA

FUJITSUS	D2D64C41

HEDY	162C7931

Founder	3A0C0121

2.txt

G:\I386\OEMBIOS.CA_

G:\WXPOEM\1\OEMBIOS.CAT

G:\WXPOEM\2\OEMBIOS.CAT

G:\WXPOEM\3\OEMBIOS.CA_

G:\WXPOEM\4\OEMBIOS.CAT

G:\WXPOEM\5\OEMBIOS.CAT

G:\WXPOEM\6\OEMBIOS.CAT

G:\WXPOEM\7\OEMBIOS.CAT

G:\WXPOEM\8\OEMBIOS.CAT

F:\cpl\thif\OEMBIOS.CA_

F:\新建文件夹\Acer\OEMBIOS.CA_

F:\新建文件夹\xxx\OEMBIOS.CA_

F:\新建文件夹\Lenovo\oembios.ca_

F:\新建文件夹\xx\OEMBIOS.CA_

Now I get a variable value, for example HEDY, which is the first value in the line in file 1.txt.

I perform CRC32 checksum on the files in the paths in 2.txt (if it is a compressed file, first EXPAND), run CRC32.EXE, assume that the CRC output result is the 2nd token in the first line, then compare with the 2nd line value in file 1.txt, IF FIND, then assign the corresponding path to a variable.

How to write code efficiently, concisely and understandably without using third-party programs? Thanks.

To supplement, the CRC value check is only run once, but the result of the check may be called multiple times, so generating the following result file is more appropriate.

LEGEND	7B06BD13 F:\新建文件夹\xxx\OEMBIOS.CA_

HEDY	162C7931 G:\WXPOEM\5\OEMBIOS.CAT

[ Last edited by quya on 2008-7-9 at 12:01 PM ]

Is this something that checks if it's a virus copy after MD5 verification?

Didn't use crc32, roughly wrote:

@echo off

for /f "delims=" %%i in (2.txt) do crc32 %%i>>crc.txt

for /f "tokens=2" %%a in (1.txt) do (

    for /f "tokens=1,3" %%i in ('findstr "%%a" crc.txt') do if "%%i" neq "" echo set %%i=%%j

)

pause>nul

[ Last edited by zw19750516 on 2008-7-9 at 01:27 PM ]

This problem I think is relatively complicated.

1. First, we need to extract the unzipped files to a temporary directory for verification. Because the original directory may be read-only, in this case, we need to save the original unzipped path value.

2. Just like I supplemented at the end of my first-floor post, I need to put the results into a file for multiple calls. As for the CRC running command format and the result, it's secondary. As long as we know it will definitely output a result. Just like in the 3rd floor, we just need to know that there is a CRC.TXT file, and there are various values in it.

3. The difficult part is to output the result after comparison, that is, to output the values of 1.txt, 2.txt, and crc.txt through a feature value again.

It would be best to give some samples of the part of the crc.txt file...

Originally posted by 26933062 at 2008-7-9 01:41 PM:
It would be best to give some samples of the part of the crc.txt file...

I can't remember the samples, but this is a common issue.

F:\New Folder\xxx\OEMBIOS.CA_ Assume here expand F:\New Folder\xxx\OEMBIOS.CA_ %temp%\OEMBIOS.CAT



crc32 %temp%\OEMBIOS.CAT



Running result ??? 7B06BD13 ???? (just an example, may not be the actual one, ??? represents anything)



G:\WXPOEM\5\OEMBIOS.CAT



crc32 G:\WXPOEM\5\OEMBIOS.CAT



Running result ??? 162C7931 ???? 

To be universal, assume I first try to get the following a CRC file (actually this file may not be needed, as long as the final result, but let's take it step by step)

CRC.TXT

G:\I386\OEMBIOS.CA_	???

G:\WXPOEM\1\OEMBIOS.CAT	??? (and so on)

G:\WXPOEM\2\OEMBIOS.CAT

G:\WXPOEM\3\OEMBIOS.CA_

G:\WXPOEM\4\OEMBIOS.CAT

G:\WXPOEM\5\OEMBIOS.CAT	162C7931

G:\WXPOEM\6\OEMBIOS.CAT

G:\WXPOEM\7\OEMBIOS.CAT

G:\WXPOEM\8\OEMBIOS.CAT

F:\cpl\thif\OEMBIOS.CA_

F:\New Folder\Acer\OEMBIOS.CA_

F:\New Folder\xxx\OEMBIOS.CA_	7B06BD13

F:\New Folder\Lenovo\oembios.ca_

F:\New Folder\xx\OEMBIOS.CA_

Finally, what I want to get is something like the following result

LEGEND        7B06BD13 F:\New Folder\xxx\OEMBIOS.CA_

HEDY        162C7931 G:\WXPOEM\5\OEMBIOS.CAT

Describing this problem in words is like this.

My computer has a VOL version of XP installed, and now I want to change it to an OEM version. My motherboard has OEM characteristics, and I have a large number of OEMBIOS files available to replace the files needed by the system. In order to find the accurate OEMBIOS files, I put them in specific folders for the program to automatically find.

Then I thought whether it could be more accurate. For example, if I put the wrong file in the folder, if I just put it randomly in a folder? Can I compile a batch file to quickly and accurately find it?

The problem is like this. And I found that this problem can also be applied in other places, and there should be many similar application examples of finding.

[ Last edited by quya on 2008-7-9 at 02:19 PM ]

After talking a lot, I didn't understand your intention from floor 1 to floor 6.
I guess I wrote a code. Let's see if it's correct...
Note: The situation where the file name and path in crc.txt contain spaces is not considered, and the situation where the first column of the content in 1.txt contains spaces is not considered.
And under the premise that there are no duplicates in the??? part of crc.txt.
:

@echo off&setlocal enabledelayedexpansion

for /f "tokens=1* delims= " %%a in (1.txt) do set %%b=%%a

for /f "tokens=1,2 delims= " %%a in (crc.txt) do (

   if defined %%b echo !%%b! %%b %%a

)

pause

[ Last edited by 26933062 on 2008-7-9 at 02:42 PM ]

If I run (for simplicity, temporarily not considering the issue of extracting OEMBIOS.CA_ to the temporary directory OEMBIOS.CAT first)

for /f %i in (2.txt) do crc32 %i >crc.txt

Get a crc.txt, this is also simulated, actually it may not be that simple, but I will handle it.

3261089

9308173

2513351

4769779

2389039

162C7931

3468033

3351192

3627383

8631970

3820293

7B06BD13

4832250

8878816

First question:

How can I combine 2.txt and CRC.txt into the following file temp.txt (if the second question can be directly solved, this file can be omitted)

temp.txt (among the table, only 2 values are real, others are virtual by me)

Path CRC value

G:\I386\OEMBIOS.CA_ 3261089
G:\WXPOEM\1\OEMBIOS.CAT 9308173
G:\WXPOEM\2\OEMBIOS.CAT 2513351
G:\WXPOEM\3\OEMBIOS.CA_ 4769779
G:\WXPOEM\4\OEMBIOS.CAT 2389039
G:\WXPOEM\5\OEMBIOS.CAT 162C7931
G:\WXPOEM\6\OEMBIOS.CAT 3468033
G:\WXPOEM\7\OEMBIOS.CAT 3351192
G:\WXPOEM\8\OEMBIOS.CAT 3627383
F:\cpl\thif\OEMBIOS.CA_ 8631970
F:\New Folder\Acer\OEMBIOS.CA_ 3820293
F:\New Folder\xxx\OEMBIOS.CA_ 7B06BD13
F:\New Folder\Lenovo\oembios.ca_ 4832250
F:\New Folder\xx\OEMBIOS.CA_ 8878816

Second question

How to get the following file according to temp.txt and 1.txt through a common CRC value

LEGEND        7B06BD13 F:\New Folder\xxx\OEMBIOS.CA_

HEDY        162C7931 G:\WXPOEM\5\OEMBIOS.CAT

Third question

Do not simplify the steps, solve my actual problem.

Actually, CRC is just a transition, I just find the directory of the specific file I need through the CRC value, and this specific file may be in a CAB compression on a read-only disk, I have to decompress it first and then detect. If the complicated steps I mentioned above are not needed, then it is the best.

The final result I really need is similar to the following style:

There are no restrictions on the following 2 values, there may be only one value, or no result if not found.

LEGEND         F:\New Folder\xxx\OEMBIOS.CA_

HEDY       G:\WXPOEM\5\OEMBIOS.CAT

[ Last edited by quya on 2008-7-9 at 04:10 PM ]

The key point is that we don't know what the result of running crc32.exe is.
You first run the following code and post the result to see.
:

@echo off

for /f "delims=" %%a in (2.txt) do (

   for /f "delims=" %%i in ('crc32 %%a') do echo %%i

)

pause

```
@echo off
for /f "delims=" %%j in (2.txt) do (
for /f "delims=" %%j in ('crc32 "%%i"') do (
for /f "delims=" %%k in ('findstr /ic:"%%j" "1.txt"') do (
if not "%%k"=="" echo %%k %%i
)
)
)
pause
```

To: Floor 9

I don't have CRC software right now. I won't know until晚上. You can assume the simplest one, which is CRC32.EXE Filename outputs the CRC value. Because no matter the actual CRC running result, I know how to handle it. This isn't the key.

To: Floor 10

I'll verify your code after get off work. Three nested FORs make me dizzy. Maybe your code will run correctly when the OEMBIOS is fully decompressed, but considering the compressed OEMBIOS.CA_, the situation will be complicated. Can you generate the intermediate file first so that I can parse it to solve the actual problem?

Thank you everyone.

The idea on floor 10 is basically accurate. I modified the second FOR loop according to the meaning of floor 10 and verified it.

@echo off

for /f "delims=" %%j in (2.txt) do (

   for /f "delims=" %%j in (crc.txt) do (

      for /f "delims=" %%k in ('findstr /ic:"%%j" "1.txt"') do (

         if not "%%k"=="" echo %%k %%i

     )

   )

)

pause

The running result is: (Can it be further improved and made more efficient? Thanks!) %i is not displayed correctly as the path! My main purpose is to obtain the path.

HEDY 162C7931 %i
LEGEND 7B06BD13 %i
HEDY 162C7931 %i
LEGEND 7B06BD13 %i
HEDY 162C7931 %i
LEGEND 7B06BD13 %i
HEDY 162C7931 %i
LEGEND 7B06BD13 %i
HEDY 162C7931 %i
LEGEND 7B06BD13 %i
HEDY 162C7931 %i
LEGEND 7B06BD13 %i
HEDY 162C7931 %i
LEGEND 7B06BD13 %i
HEDY 162C7931 %i
LEGEND 7B06BD13 %i
HEDY 162C7931 %i
LEGEND 7B06BD13 %i
HEDY 162C7931 %i
LEGEND 7B06BD13 %i
HEDY 162C7931 %i
LEGEND 7B06BD13 %i
HEDY 162C7931 %i
LEGEND 7B06BD13 %i
HEDY 162C7931 %i
LEGEND 7B06BD13 %i
HEDY 162C7931 %i
LEGEND 7B06BD13 %i
Press any key to continue...

As for the acquisition of the CRC.TXT file, my preliminary idea is the following code, which has not been run and verified, and may need to use delayed variables and so on.

for /f %%i in (2.txt) do (if %~xi==cat crc32 %%i>>crc.txt else (expand %%i %temp%\oembios.cat &crc32 %temp%\oembios.cat>>crc.txt))

[ Last edited by quya on 2008-7-9 at 05:13 PM ]

The 10th floor had a wrong character, so there was a little error when running on the 12th floor

@echo off
for /f "delims=" %%i in (2.txt) do (
for /f "delims=" %%j in ('crc32 "%%i"') do (
for /f "delims=" %%k in ('findstr /ic:"%%j" "1.txt"') do (
if not "%%k"=="" echo %%k %%i
)
)
)
pause

Assume your WinRAR storage path is c:\progra~1\winrar\，as follows:

@echo off&setlocal enabledelayedexpansion

for /f %%a in (2.txt) do (

      if "%%~xa" equ ".rar" (

        call c:\progra~1\winrar\rar x %%a %%~dpa\

        for /f "delim=" %%i in ('crc32 "%%~dpna.CA*"') do set str=%%i

        ) else (

        for /f "delims=" %%i in ('crc32 "%%a"') do set str=%%i

     )

     echo !str! %%a>>crc.txt

)

rem Assume crc.exe *.* is in the form listed by the original poster

for /f "tokens=1,2" %%a in (crc.txt) do (

    for /f "delims=" %%i in ('findstr "%%a" 1.txt')  do echo  %%i %%b

)

[ Last edited by zw19750516 on 2008-7-9 at 06:04 PM ]

Originally posted by zh159 at 2008-7-9 05:23 PM:
There is a character error in floor 10, so there is a slight error when running in floor 12

No, the path name is completely useless. Even if J is changed to I, the result is wrong.

Thank you to floor 10 and other friends who helped. Can you take another look? I really can't figure it out.