| dd.1 (57639) | dd.1 (68935) |
|---|---|
| 1.\" Copyright (c) 1990, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" Keith Muller of the University of California, San Diego. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions --- 19 unchanged lines hidden (view full) --- 28.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33.\" SUCH DAMAGE. 34.\" 35.\" @(#)dd.1 8.2 (Berkeley) 1/13/94 | 1.\" Copyright (c) 1990, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" Keith Muller of the University of California, San Diego. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions --- 19 unchanged lines hidden (view full) --- 28.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33.\" SUCH DAMAGE. 34.\" 35.\" @(#)dd.1 8.2 (Berkeley) 1/13/94 |
| 36.\" $FreeBSD: head/bin/dd/dd.1 57639 2000-03-01 05:28:45Z green $ | 36.\" $FreeBSD: head/bin/dd/dd.1 68935 2000-11-20 11:39:41Z ru $ |
| 37.\" 38.Dd January 13, 1994 39.Dt DD 1 40.Os 41.Sh NAME 42.Nm dd 43.Nd convert and copy a file 44.Sh SYNOPSIS | 37.\" 38.Dd January 13, 1994 39.Dt DD 1 40.Os 41.Sh NAME 42.Nm dd 43.Nd convert and copy a file 44.Sh SYNOPSIS |
| 45.Nm dd | 45.Nm |
| 46.Op operands ... 47.Sh DESCRIPTION 48The 49.Nm 50utility copies the standard input to the standard output. 51Input data is read and written in 512-byte blocks. 52If input reads are short, input from multiple reads are aggregated 53to form the output block. --- 192 unchanged lines hidden (view full) --- 246conversion is not specified, the input block is omitted from the output. 247On input files which are not tapes or pipes, the file offset 248will be positioned past the block in which the error occurred using 249.Xr lseek 2 . 250.It Cm notrunc 251Do not truncate the output file. 252This will preserve any blocks in the output file not explicitly written 253by | 46.Op operands ... 47.Sh DESCRIPTION 48The 49.Nm 50utility copies the standard input to the standard output. 51Input data is read and written in 512-byte blocks. 52If input reads are short, input from multiple reads are aggregated 53to form the output block. --- 192 unchanged lines hidden (view full) --- 246conversion is not specified, the input block is omitted from the output. 247On input files which are not tapes or pipes, the file offset 248will be positioned past the block in which the error occurred using 249.Xr lseek 2 . 250.It Cm notrunc 251Do not truncate the output file. 252This will preserve any blocks in the output file not explicitly written 253by |
| 254.Nm Ns . | 254.Nm . |
| 255The 256.Cm notrunc 257value is not supported for tapes. 258.It Cm osync 259Pad the final output block to the full output block size. 260If the input file is not a multiple of the output block size 261after conversion, this conversion forces the final output block 262to be the same size as preceding blocks for use on devices that require --- 109 unchanged lines hidden --- | 255The 256.Cm notrunc 257value is not supported for tapes. 258.It Cm osync 259Pad the final output block to the full output block size. 260If the input file is not a multiple of the output block size 261after conversion, this conversion forces the final output block 262to be the same size as preceding blocks for use on devices that require --- 109 unchanged lines hidden --- |