| dd.1 (139969) | dd.1 (140353) |
|---|---|
| 1.\"- 2.\" Copyright (c) 1990, 1993 3.\" The Regents of the University of California. All rights reserved. 4.\" 5.\" This code is derived from software contributed to Berkeley by 6.\" Keith Muller of the University of California, San Diego. 7.\" 8.\" Redistribution and use in source and binary forms, with or without --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)dd.1 8.2 (Berkeley) 1/13/94 | 1.\"- 2.\" Copyright (c) 1990, 1993 3.\" The Regents of the University of California. All rights reserved. 4.\" 5.\" This code is derived from software contributed to Berkeley by 6.\" Keith Muller of the University of California, San Diego. 7.\" 8.\" Redistribution and use in source and binary forms, with or without --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)dd.1 8.2 (Berkeley) 1/13/94 |
| 33.\" $FreeBSD: head/bin/dd/dd.1 139969 2005-01-10 08:39:26Z imp $ | 33.\" $FreeBSD: head/bin/dd/dd.1 140353 2005-01-16 16:41:59Z ru $ |
| 34.\" 35.Dd August 15, 2004 36.Dt DD 1 37.Os 38.Sh NAME 39.Nm dd 40.Nd convert and copy a file 41.Sh SYNOPSIS --- 326 unchanged lines hidden (view full) --- 368.Nm 369receives a 370.Dv SIGINT 371signal, the current input and output block counts will 372be written to the standard error output 373in the same format as the standard completion message and 374.Nm 375will exit. | 34.\" 35.Dd August 15, 2004 36.Dt DD 1 37.Os 38.Sh NAME 39.Nm dd 40.Nd convert and copy a file 41.Sh SYNOPSIS --- 326 unchanged lines hidden (view full) --- 368.Nm 369receives a 370.Dv SIGINT 371signal, the current input and output block counts will 372be written to the standard error output 373in the same format as the standard completion message and 374.Nm 375will exit. |
| 376.Sh EXIT STATUS 377.Ex -std |
|
| 376.Sh EXAMPLES 377Check that a disk drive contains no bad blocks: 378.Pp 379.Dl "dd if=/dev/ad0 of=/dev/null bs=1m" 380.Pp 381Do a refresh of a disk drive, in order to prevent presently 382recoverable read errors from progressing into unrecoverable read errors: 383.Pp 384.Dl "dd if=/dev/ad0 of=/dev/ad0 bs=1m" 385.Pp 386Remove parity bit from a file: 387.Pp 388.Dl "dd if=file conv=parnone of=file.txt" 389.Pp 390Check for (even) parity errors on a file: 391.Pp 392.Dl "dd if=file conv=pareven | cmp -x - file" | 378.Sh EXAMPLES 379Check that a disk drive contains no bad blocks: 380.Pp 381.Dl "dd if=/dev/ad0 of=/dev/null bs=1m" 382.Pp 383Do a refresh of a disk drive, in order to prevent presently 384recoverable read errors from progressing into unrecoverable read errors: 385.Pp 386.Dl "dd if=/dev/ad0 of=/dev/ad0 bs=1m" 387.Pp 388Remove parity bit from a file: 389.Pp 390.Dl "dd if=file conv=parnone of=file.txt" 391.Pp 392Check for (even) parity errors on a file: 393.Pp 394.Dl "dd if=file conv=pareven | cmp -x - file" |
| 393.Sh DIAGNOSTICS 394.Ex -std | |
| 395.Sh SEE ALSO 396.Xr cp 1 , 397.Xr mt 1 , 398.Xr tr 1 399.Sh STANDARDS 400The 401.Nm 402utility is expected to be a superset of the --- 15 unchanged lines hidden --- | 395.Sh SEE ALSO 396.Xr cp 1 , 397.Xr mt 1 , 398.Xr tr 1 399.Sh STANDARDS 400The 401.Nm 402utility is expected to be a superset of the --- 15 unchanged lines hidden --- |