CP(1)CP(1)
NAME
cp, fcp, mv – copy, move files
SYNOPSIS
cp
[
-gux
]
file1 file2
cp
[
-gux
]
file ... directory
fcp
[
-gux
]
file1 file2
fcp
[
-gux
]
file ... directory
mv
file1 file2
mv
file ... directory
DESCRIPTION
In the first form
file1
is any name and
file2
is any name except an existing directory.
In the second form the commands
copy or move one or more
files
into a
directory
under their original file names, as if by a sequence of
commands in the first form.
Thus
cp f1 f2 dir
is equivalent to
cp f1 dir/f1; cp f2 dir/f2 .
Cp
copies the contents of plain
file1
to
file2.
The mode and owner of
file2
are preserved if it already
exists; the mode of
file1
is used otherwise.
The
-x
option sets the mode and modified time of
file2
from
file1;
-g
sets the group id; and
-u
sets the group id and user id (which is usually only possible if the file server is in an administrative mode).
Fcp
behaves like
cp
but transfers multiple blocks in parallel while copying;
it is noticeably faster than
cp
when the files involved are stored on servers connected over long-distance lines.
It is only appropriate to use
fcp
with file servers that respect the
offset
in
read(5)
and
write
messages.
This includes the disk-based file systems and ramfs
but excludes most device file systems.
Mv
moves
file1
to
file2.
If the files are in the same directory,
file1
is just renamed;
otherwise
mv
behaves like
cp
-x
followed by
rm
file1.
Mv
will rename directories,
but it refuses to move a directory into another directory.
SOURCE
/sys/src/cmd/cp.c
/sys/src/cmd/fcp.c
/sys/src/cmd/mv.c
SEE ALSO
cat(1),
dircp
in
tar(1),
stat(2),
read(5)
DIAGNOSTICS
Cp,
fcp,
and
mv
refuse to copy or move files onto themselves.