cp is a utility command to copy file or directory. It’s invoked at least with two arguments; the source file or directory, and the destination to copy the source. It can be used to copy one or multiple source of files and directories.
General syntax for cp command:
$ cp [OPTIONS] [SOURCE...] [DESTINATION...]
Duplicating a file
cp foo.txt bar.txt
This command duplicates the file foo.txt, into a new file call bar.txt.
Duplicating a directory (and its contents)
cp -R foo-folder bar-folder
Use the -R option, this command will duplicate the folder foo-folder and its content to bar-folder.
Show the copying progress
cp -v foo.txt bar.txt
Including the -v parameter shows us what the cp command is doing (progress) in the background. This paramater is usually used when copying large number of files is involved.
Confirmation to overwrite a file
cp -i foo.txt bar.txt
Explaination: If a file bar exist when you attempt to copy foo to a new file call bar, the -i parameter will ask you for confirmation if you want to overwrite the existing file. Enter y to overwrite said file, or n to cancel.
Copying multiple files to a directory
cp foo.txt bar.txt baz
This command will duplicate a copy of foo.txt and bar.txt in, into the baz directory. The baz directory must first exist in order for command to work.
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