COPY – Windows CMD Command
Copy one or more files to another location.
COPY [options] [/A|/B] source [/A|/B] [+ source2 [/A|/B]...] [destination [/A|/B]]
COPY source1 + source2.. destination [options]
source : Pathname for the file or files to be copied.
/A : ASCII text file (default)
/B : Binary file copy - will copy extended characters.
/D : Allow the destination file to be created decrypted.
destination : Pathname for the new file(s).
/V : Verify that the destination file, once written, can be read.
No comparison with the source files occurs.
/N : If at all possible, create only short filenames (8.3) in the
destination. This option can help when copying between disks
that are formatted differently e.g NTFS and VFAT, or when archiving
data to an ISO9660 CDROM.
/L : If source is a symbolic link copy the link to the target
instead of the actual file the source link points to.
/Y : Suppress confirmation prompt, when overwriting files.
/-Y : Enable confirmation prompt, when overwriting files.
/Z : Copy files in restartable mode. If the copy is interrupted
part way through, it will restart if possible. (use on slow networks)
To combine files, specify a single file for the destination, but multiple files as the source. To specify more than one file use wildcards or list the files with a + in between each (file1+file2+file3)
When copying multiple files in this way the first file must exist or else the copy will fail, a workaround for this is COPY null + file1 + file2 dest1
“COPY /B … ” will copy files in binary mode.
The /A and /B options can appear in multiple locations, with different meanings depending on location.
Before any source – they will set the default mode for all source and destination files.
After a source – they will set the mode for that source.
After the destination – they will set the mode for the destination.
Copy from the console (accept user input)
COPY CON filename.txt
Then type the input text followed by ^Z (Control key & Z)
Prompt to overwrite destination file
Under Windows 2000 and above, the default action is to prompt on overwrite unless the command is being executed from within a batch script.
To force the overwriting of destination files use the COPYCMD environment variable:
If the file(s) were successfully copied %ERRORLEVEL% = 0
If the file was not found or bad parameters are given = 1
COPY will accept UNC pathnames
Copy a file in the current folder
COPY source_file.doc newfile.doc
Copy from a different folder/directory:
COPY "C:\my work\some file.doc" "D:\New docs\newfile.doc"
Specify the source only, with a wildcard will copy all the files into the current directory:
COPY "C:\my work\*.doc"
Specify the source with a wildcard and the destination as a single file, this is generally only useful with plain text files.
COPY "C:\my work\*.txt" "D:\New docs\combined.txt"
Quiet copy (no feedback on screen)
COPY source_file.doc newfile.doc >nul
Copy a file, but do not overwrite if the destination file already exists, this technique only works for a single file, no wildcards:
Echo n|COPY /-y c:\demo\source_file.txt c:\dir\dest.txt
COPY is an internal command.