ref: b502a62da2ec6058923db94f87ecc2d29db2fa77
dir: /man/1/cp/
.TH CP 1 .SH NAME cp, fcp \- copy files .SH SYNOPSIS .B cp [ .B -gux ] .I fromfile tofile .br .B cp [ .B -gux ] .I fromfile \&... .I todir .br .B cp -r [ .B -gux ] .I fromdir \&... .I todir .PP .B fcp [ .BI -R " nr" ] [ .BI -W " nw" ] .I fromfile tofile .br .B fcp [ .BI -R " nr" ] [ .BI -W " nw" ] .I fromfile \&... .I todir .br .B fcp -r [ .BI -R " nr" ] [ .BI -W " nw" ] .I fromdir \&... .I todir .SH DESCRIPTION In the first form, .I fromfile is any name and .I tofile is any name except an existing directory. In the second form, the commands copy one or more .I fromfiles into .I dir under their original file names, as if by a sequence of commands in the first form. For example: .IP .B "cp f1 f2 dir" .PP is equivalent to: .IP .B "cp f1 dir/f1; cp f2 dir/f2" .PP .I Cp copies the contents of plain (non-directory) file .I fromfile to .IR tofile . The mode and owner of .I tofile are preserved if it already exists; the permissions of .I fromfile is used otherwise. The .B -x option sets the full mode and modified time of .I file2 from .IR file1 ; .B -g sets the group id; and .B -u sets the group id and user id (which is usually only possible if the file server is in an administrative mode). .PP The .B -r option directs .I cp to copy recursively the named directories .I "fromdir ..." to the target directory .IR todir . .PP .I Fcp behaves like .IR cp , but copies many blocks in parallel. It works only with files that respect read and write offsets (see .B pread and .B pwrite in .IR sys-read (2)), which usually excludes files representing devices or services. When it applies, however, it is often much faster than .IR cp . The .B -R and .B -W options set the number of readers and writers (default for each: 8). .SH SOURCE .B /appl/cmd/cp.b .br .B /appl/cmd/fcp.b .SH "SEE ALSO" .IR cat (1), .IR mv (1), .IR sys-stat (2) .SH DIAGNOSTICS .I Cp and .I fcp refuse to copy a file onto itself.