How to merge two text files?

[tomasz86 77]

I have a fixed list of files, let's say:

1.dll

2.dll

3.dll

...

100. dll (all filenames are different, here it's just an example)

I would like to copy each of them only if the file exists. Is there any better way than doing it like this?

IF EXIST 1.dll COPY 1.dll <destination>

IF EXIST 2.dll COPY 2.dll <destination>

etc.

Edited July 31, 2011 by tomasz86

[jaclaz 995]

I have a fixed list of files, let's say:

1.dll

2.dll

3.dll

...

100. dll (all filenames are different, here it's just an example)

I would like to copy each of them only if the file exists. Is there any better way than doing it like this?

IF EXIST 1.dll COPY 1.dll <destination>

IF EXIST 2.dll COPY 2.dll <destination>

etc.

Is the <destination> always the same?

Or can you use a "configuration file" (like a CSV)?

LIke:

1.dll ,"C:\Windows\Whatever\"
2.dll,"C:\Somewhere Else\"
....
<source file>,<target destnation>

You do a FOR loop:

@ECHO OFF
SETLOCAL ENABLEEXTENSIONS
FOR /F "tokens=1,2 delims=," %%A IN (Files_to_copy.csv) DO (
ECHO IF EXIST %%A  COPY /B %%A %%B
)

jaclaz

[Yzöwl 30]

I have a fixed list of files, let's say:

1.dll

2.dll

3.dll

...

100. dll (all filenames are different, here it's just an example)

I would like to copy each of them only if the file exists. Is there any better way than doing it like this?

IF EXIST 1.dll COPY 1.dll <destination>

IF EXIST 2.dll COPY 2.dll <destination>

etc.

I'm intrigued as to what you feel needs improvement in the samples you've provided.

You cannot copy what doesn't exist!

[tomasz86 77]

Yzöwl,

I have a list of files (hundreds of files), ex.

• 
  _DEFAULT.PI_
  0401.CS_
  0404.CS_
  0405.CS_
  0406.CS_
  0407.CS_
  0408.CS_
  040B.CS_
  040C.CS_
  040D.CS_
  040E.CS_
  0410.CS_
  0411.CS_
  0412.CS_
  0413.CS_
  0414.CS_
  0415.CS_
  0416.CS_
  0419.CS_
  041D.CS_
  041F.CS_
  0804.CS_
  0816.CS_
  0C0A.CS_
  12520437.CP_
  12520850.CP_
  1394.IN_
  1394BUS.SY_
  192.DN_
  2195.138.1.BLD
  3DGARRO.CU_
  3DGMOVE.CU_
  3DGNESW.CU_
  3DGNO.CU_
  3DGNS.CU_
  3DGNWSE.CU_
  3DGWE.CU_
  3DSMOVE.CU_
  3DSNS.CU_
  3DSNWSE.CU_
  3DWARRO.CU_
  3DWMOVE.CU_
  3DWNESW.CU_
  3DWNO.CU_
  3DWNS.CU_
  3DWNWSE.CU_
  3DWWE.CU_
  8514FIX.FO_
  8514FIXE.FO_
  8514FIXG.FO_
  8514FIXR.FO_
  8514FIXT.FO_
  8514OEM.FO_
  8514OEME.FO_
  8514OEMG.FO_
  8514OEMR.FO_
  8514OEMT.FO_
  8514SYS.FO_
  8514SYSE.FO_
  8514SYSG.FO_
  8514SYSR.FO_
  8514SYST.FO_
  85775.FO_
  85855.FO_
  85F1257.FO_
  85S1257.FO_
  AAAAMON.DL_
  ABP480N5.SY_
  ACC_DIS.CH_
  ACCESS.CH_

Changing everything manually to

IF EXIST _DEFAULT.PI_ COPY _DEFAULT.PI_ <destination>
IF EXIST 0401.CS_ COPY 0401.CS_ <destination>

takes too much time. If I do just

COPY _DEFAULT.PI_ <destination>
COPY 0401.CS_ <destination>

then there is a "file not found" error on the screen (when the file doesn't exist) and the script is also much slower as it tries to copy all these files one by one.

Edited July 31, 2011 by tomasz86

[jaclaz 995]

Changing everything manually to

The WHOLE idea about batch files is that you DO NOT change hundreds of lines manually!

That's ALSO exactly the ide of having a "configuration file".

You have same command line (which you change just once) and a LIST of files (source/destination) that it's much easier to create or change.

then there is a "file not found" error on the screen (when the file doesn't exist) ....

Meet REDIRECTION of standard output and standard error :

http://www.robvanderwoude.com/redirection.php

Also, please, ALWAYS use COPY /B when copying files, you never know:

http://ss64.com/nt/copy.html

This:

@ECHO OFF
SETLOCAL ENABLEEXTENSIONS
SET DESTINATION=C:\somewhere\
ECHO.>newfile.cmd
FOR /F "tokens=* delims=" %%A IN (list_of_dlls.txt) DO (
ECHO IF EXIST %%A  COPY /B %%A %DESTINATION%>>newfile.cmd
)

Will create a new file "newfile.cmd" with all the entries in your list of dll's "list_of_dlls.txt" automatically (as opposed to manually)

jaclaz

Edited July 31, 2011 by jaclaz

[tomasz86 77]

It works. Thank you

I'll use COPY /B from now... is there something similar with MOVE?

[Yzöwl 30]

Using COPY /B serves no purpose when used in that manner, in fact it is the default mode when copying single files.

[jaclaz 995]

Using COPY /B serves no purpose when used in that manner, in fact it is the default mode when copying single files.

Are you sure?

The referenced page says the opposite.

http://ss64.com/nt/copy.html

Maybe it changed between 2K and XP?

http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/copy.mspx?mfr=true

jaclaz

[Yzöwl 30]

Are you saying that pre-XP the resulting file copied, C:\MyFiles\Binary.ext, as a result of the following doesn't work or is somehow broken?

IF NOT EXIST C:\MYFILES\ MD C:\MYFILES
COPY A:\BINARY.EXT C:\MYFILES

[jaclaz 995]

Are you saying that pre-XP the resulting file copied, C:\MyFiles\Binary.ext, as a result of the following doesn't work or is somehow broken?

IF NOT EXIST C:\MYFILES\ MD C:\MYFILES

NO, I am not.

I am saying what I said (and nothing else) .

I have always used /B (probably uneededly ) because of the referenced page AND along the lines of "better be safe than sorry" philosophy.

Since it is common that the good MS guys almost silently change some little things in commands and their syntax, [b]if[/b] the behaviour in earlier version was different [b]then[/b] everything would make sense, or if you prefer I was trying to find an explanation why the SS64 site (normally very exact) carried some wrong info.

jaclaz

[tomasz86 77]

@ECHO OFF
SETLOCAL ENABLEEXTENSIONS
SET DESTINATION=C:\somewhere\
ECHO.>newfile.cmd
FOR /F "tokens=* delims=" %%A IN (list_of_dlls.txt) DO (
ECHO IF EXIST %%A  COPY /B %%A %DESTINATION%>>newfile.cmd
)

In the end I used this method as a basis:

SETLOCAL ENABLEEXTENSIONS
SET A=
SET B=
SET C=
FOR /F %%I IN ('DIR/A-D/B %A%') DO (
	IF EXIST %B%\%%I (
		COPY/B %B%\%%I %C%\
		)
	)

I also have another question related to this script. Is it possible to copy only specific files like "*.*_"? I tried adding

IF "%%~xI"==".*_"

but it doesn't work. It works only if the extension is specified, ex.

IF "%%~xI"==".dl_"

Nevermind, I got it work by changing

('DIR/A-D/B %A%')

to

('DIR/A-D/B %A%\*.*_')

Everything is fine but copying is very slow compared to just doing xcopy

Edited August 2, 2011 by tomasz86

[Yzöwl 30]

It really depends upon the full intent of your script. You may be able to simply change the For command Dir output.

You need to be aware that asking for small changes throughout the Topic can completely ruin the final result. If you actually provide a full and complete explanation of the batch file requirements from the outset it is likely that the solution will better suit your intent.

As a side note, a file extension with an underscore suffix does not necessarily mean that the file is compressed.

[jaclaz 995]

Everything is fine but copying is very slow compared to just doing xcopy

A new approach :

1. copy *everything* with XCOPY fast
   
2. delete what you DO NOT need
   

jaclaz

[tomasz86 77]

Yzöwl,

the script is connected with the other one for merging Win2k's updates ("merging text files..." topic). It's supposed to update files from Service Pack 4 with newer versions that come from the merged updates.

I already prepared it and it's working so I don't really need more help in this topic I used strings like this one and that's why I asked for help.

	FOR /F %%I IN ('DIR/A-D/B SPMER\i386\*.*_') DO (
		EXPAND -R SPMER\i386\%%I TEMP\ >NUL
		FOR /F %%I IN ('DIR/A-D/B TEMP') DO (
			ECHO Checking i386\%%I
			IF EXIST HFMER\%%I (
				ECHO Processing i386\%%I&ECHO.
				XCOPY/DY HFMER\%%I TEMP\ >NUL&DEL/Q HFMER\%%I >NUL
				MAKECAB /D CompressionMemory=21 /D CompressionType=LZX TEMP\%%I /L SPMER\i386 >NUL
			)
		DEL/Q/S TEMP\%%I >NUL
		)
	)

I have also rewritten everything in the other script for merging updates so now it's simpler and doesn't use any other (HFSLIP etc.) sources except for the parts where jaclaz's scripts are used. I'll post an updated version in the other topic after I combine both together as now they are two separate scripts.

[Yzöwl 30]

Yzöwl,

the script is connected with the other one for merging Win2k's updates ("merging text files..." topic).

Okay, topics Merged.