V3/man/man1/cp.1

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NAME		cp -- copy
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SYNOPSIS	cp__ file918 file928
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DESCRIPTION	The
first file is copied onto the second.
The mode and owner of the target file
are preserved if it already
existed; the mode of the source file
is used otherwise.
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If file928 is a directory, then the target 
file is a file in that directory with the file-name
of file918.
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FILES		--
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SEE ALSO	cat(I), pr(I), mv(I)
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DIAGNOSTICS	Error returns are
checked at every system call, and
appropriate diagnostics are produced.
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BUGS		Copying
a file onto itself destroys its contents.