CP(1) CP(1)
NAME
cp, fcp - copy files
SYNOPSIS
cp [ -gux ] fromfile tofile
cp [ -gux ] fromfile ... todir
cp -r [ -gux ] fromdir ... todir
fcp [ -R nr ] [ -W nw ] fromfile tofile
fcp [ -R nr ] [ -W nw ] fromfile ... todir
fcp -r [ -R nr ] [ -W nw ] fromdir ... todir
DESCRIPTION
In the first form, fromfile is any name and tofile is any
name except an existing directory. In the second form, the
commands copy one or more fromfiles into dir under their
original file names, as if by a sequence of commands in the
first form. For example:
cp f1 f2 dir
is equivalent to:
cp f1 dir/f1; cp f2 dir/f2
Cp copies the contents of plain (non-directory) file
fromfile to tofile. The mode and owner of tofile are pre-
served if it already exists; the permissions of fromfile is
used otherwise. The -x option sets the full mode and modi-
fied time of file2 from file1; -g sets the group id; and -u
sets the group id and user id (which is usually only possi-
ble if the file server is in an administrative mode).
The -r option directs cp to copy recursively the named
directories fromdir ... to the target directory todir.
Fcp behaves like cp, but copies many blocks in parallel. It
works only with files that respect read and write offsets
(see pread and pwrite in sys-read(2)), which usually
excludes files representing devices or services. When it
applies, however, it is often much faster than cp. The -R
and -W options set the number of readers and writers
(default for each: 8).
SOURCE
/appl/cmd/cp.b
/appl/cmd/fcp.b
SEE ALSO
cat(1), mv(1), sys-stat(2)
Page 1 Plan 9 (printed 11/24/24)
CP(1) CP(1)
DIAGNOSTICS
Cp and fcp refuse to copy a file onto itself.
Page 2 Plan 9 (printed 11/24/24)