Copy (command)

copy is a shell command for copying files.
Different implementations provide various capabilities, such as:

Combining multiple files into a single file
If multiple source files are specified before the path to an existing directory, then files are copied to the directory
Support for text vs. binary data; for text, the command stops when it reaches an end-of-file character; for binary, files are copied in their entirety, ignoring EOF
In DOS, a file can be copied to or from a device. For example, copy path con outputs the file at path to the console, and copy con path copies text typed at the console to a file at ''path''

Implementations

The command is available in RT-11, OS/8, RSX-11, ISIS-II, iRMX 86, TOPS-10, TOPS-20, OpenVMS, MetaComCo TRIPOS, HDOS, Z80-RIO, OS-9, DOS, FlexOS, 4690 OS, PC-MOS, HP MPE/iX, OS/2, Windows, ROM-DOS, ReactOS, SymbOS, DexOS, and 86-DOS.
Under IBM PC DOS/MS-DOS the command is available since version 1.
Some shells provide a copy command with a different name. In Unix-based systems, the copy command is cp. In CP/M, the command is PIP. in OpenVOS, the command is copy_file.

DOS

The following copies existing file fromfile to path tofile.
copy fromfile tofile
A file can be copied to a device. The following sends a file to the printer on lpt1.
copy letter.txt lpt1
The following outputs to stdout, like the type command.
copy letter.txt con
The following concatenates the page# files into book.txt like cat.
copy page1.txt+page2.txt book.txt
The command can copy files between drives.
The following uses text mode to copy text of the file, stopping when it reaches an EOF character.
copy /a doc1.txt + doc2.txt doc3.txt
copy /a *.txt doc3.txt
The following uses binary mode, concatenating files in their entirety and ignoring EOF characters.
copy /b image1.jpg + image2.jpg image3.jpg