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CertiGuide to A+ (A+ 4 Real) 9 Chapter 1: What are Operating Systems and How Do They Work? 9 CDI System Commands |
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The Copy and XCopy Commands
The copy command is used to make an identical copy of a file or pattern matched list of files into a new location. Files can be renamed during the copying process if required.
Some basic uses of copy are illustrated in Table 7.
Command |
Action |
copy a.txt b.txt |
Create a duplicate of a.txt named b.txt |
copy a.txt e:\temp |
Make a copy of a.txt from the current directory in the e:\temp directory |
Copy a.txt e:\temp\b.txt |
Make a copy of a.txt in the e:\temp directory, and name it b.txt |
copy *.txt e:\temp |
Duplicate all files in the current directory with a .txt extension into e:\temp |
Copy *.txt *.doc |
Make a copy of all .txt files, and give the new files an extension of .doc |
Copy is also able to concatenate files, which is useful if you need to merge multiple text files into a single file. The syntax of this command is:
copy file1 + file2 outputfile
This command creates a new file called “outputfile” containing the contents of both file1 and file2.
Xcopy is an enhanced and external version of the copy command, with some powerful extra options. It can copy entire directory trees, or even duplicate directories without their files. If the copy command does not provide the required options, xcopy most likely will. One of the most useful Xcopy switches is “/S”, which tells Xcopy to copy all subdirectories as well as the top-level target directory.
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