![3DDosTips.com=20](3D"http://www.dostips.com/TitleDostips.JPG")
=
for =
Windows7,VISTA,XP,NT,Server=20
2000,
Server=20
2003,Server 2008
DOS - XCopy Copy Tips
This section provides =
answers to=20
common file copy questions. =
Click=20
here to view the XCOPY command =
reference.
1 =
Copy new=20
and newer files only. 1
2 =
Copy newer=20
files only, destination must exist. 1
3 =
Copy new=20
files only. 1
4 =
Additional=20
Task for each File to be copied. 1
5 =
Preserving=20
the Directory Structure during Copy. 1
6 =
Test for=20
Open File. 2
Description
XCOPY=92s /D=20
option makes sure that only new and newer files will be=20
copied.
source=20
can be a file mask e.g.: *.*, my*.*, my*.log,=20
directory\*.*
destination can=20
be a directory e.g.: ., directory
Code
xcopy=20
"%source%" "%destination%" /D /Y
Description
XCOPY=92s /U=20
option makes sure that files will only be copied as part of an =
update.=20
source=20
can be a file mask e.g.: *.*, my*.*, my*.log,=20
directory\*.*
destination can=20
be a directory e.g.: ., directory
Code
xcopy=20
"%source%" "%destination%" /D /U =
/Y
Description
XCOPY=92s /L=20
option will not perform the actual copy but will list the files =
that would=20
be copied without the /L option. =20
The resulting file list can be used to perform further =
checks=20
before the actual copy. =
In=20
this example a FOR =
command=20
parses the resulting file list and runs an additional if not exist check in =
order to=20
make sure that no file gets overwritten.
source=20
can be a file mask e.g.: *.*, my*.*, my*.log,=20
directory\*.*
destination can=20
be a directory e.g.: ., directory
Code
for /f %%a in ('xcopy "%source%" "%destination%" /L /Y') do=20
(
if not exist =
"%destination%.\%%~nxa" xcopy "%%a" "%destination%" =
/Y
)
Description
Having the =
ability to=20
retrieve a list of files that would be copied without actually =
performing=20
the copy allows executing additional tasks for each file =
listed. Performing the copy =
itself becomes=20
optional.
The example =
shown here=20
outputs a nice message for each file being copied and removes all =
text=20
file from the destination folder that have the same name as the =
file to be=20
copied but the extension .txt.
source=20
can be a file mask e.g.: *.*, my*.*, my*.log,=20
directory\*.*
destination can=20
be a directory e.g.: ., directory
Code
for /f %%a in ('xcopy "%source%" "%destination%" /L /Y') do=20
(
echo.Copying file '%%a' and removing =
corresponding=20
.txt files
if exist =
%%~dpna.txt=20
del=20
%%~dpna.txt
xcopy "%%a" "%destination%" =
/Y
)
Description
To copy files =
for backup=20
purpose it is often necessarily to preserve the directory =
structure in the=20
backup location. =
I.e. In=20
order to backup all *.pst files under =
the=20
=93c:\Documents =
and=20
Settings=94 directory and copy =
them to=20
=93c:\pstbackup\ Documents and=20
Settings\...=94 the code shown =
here can be=20
used.
Note: You may=20
think that a simple =93xcopy "C:\Documents and =
Settings\*.pst" "c:\pstbackup\" /Y/U/S=94 does the =
job, but=20
testing showed that it will always returns =94File not found - *.pst=94. =20
So here a solution that does =
work:
Code
set=20
sourcedir=3Dc:\Documents and =
Settings\*.pst
set=20
backupdir=3Dc:\pstbackup
for=20
/f "tokens=3D*" %%a in ('dir "%sourcedir%" /s/b')=20
do (
xcopy "%%a" "%backupdir%.%%~pa" /Y/U
)
Description
The =
copy=20
command can be used to check wither a file is open without =
modifying=20
it.
How =
it=20
works:
copy=20
/-y =
will causes=20
prompting to confirm you want to overwrite the file.
echo.N =
will abort the=20
copy operation so that the copy really only checks whether the =
file is=20
open.
>NUL will make sure everything happens quietly =
without=20
showing anything on the screen.
If the file (to be copied) =
is not=20
open then the copy operation will be successfully aborted by =
piping the=20
'N' into the conformation. Since such abort indicates success, the =
code=20
behind the && will be=20
executed.
If =
the file is=20
open then the copy operation will fail and the code behind the || will be executed. =
Code
echo.N|copy /-y NUL=20
"%filename%">NUL&&(
echo.%filename% =
is=20
free!
rem leave this =
rem here at the block =
end!!!
) ||=20
(
echo.%filename% =
is in=20
use!
)
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