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