DD(1) FSF DD(1)NAMEdd - convert and copy a file
SYNOPSISdd [OPTION]...
DESCRIPTION
Copy a file, converting and formatting according to the
options.
bs=BYTES
force ibs=BYTES and obs=BYTES
cbs=BYTES
convert BYTES bytes at a time
conv=KEYWORDS
convert the file as per the comma separated keyword
list
count=BLOCKS
copy only BLOCKS input blocks
ibs=BYTES
read BYTES bytes at a time
if=FILE
read from FILE instead of stdin
obs=BYTES
write BYTES bytes at a time
of=FILE
write to FILE instead of stdout
seek=BLOCKS
skip BLOCKS obs-sized blocks at start of output
skip=BLOCKS
skip BLOCKS ibs-sized blocks at start of input
--help display this help and exit
--version
output version information and exit
BLOCKS and BYTES may be followed by the following multi
plicative suffixes: xM M, c 1, w 2, b 512, kD 1000, k
1024, MD 1,000,000, M 1,048,576, GD 1,000,000,000, G
1,073,741,824, and so on for T, P, E, Z, Y. Each KEYWORD
may be:
ascii from EBCDIC to ASCII
ebcdic from ASCII to EBCDIC
ibm from ASCII to alternated EBCDIC
block pad newline-terminated records with spaces to cbs-
size
unblock
replace trailing spaces in cbs-size records with
newline
lcase change upper case to lower case
notrunc
do not truncate the output file
ucase change lower case to upper case
swab swap every pair of input bytes
noerror
continue after read errors
sync pad every input block with NULs to ibs-size; when
used
with block or unblock, pad with spaces rather than
NULs
AUTHOR
Written by Paul Rubin, David MacKenzie, and Stuart Kemp.
REPORTING BUGS
Report bugs to <bug-fileutils@gnu.org>.
COPYRIGHT
Copyright 2001 Free Software Foundation, Inc.
This is free software; see the source for copying condi
tions. There is NO warranty; not even for MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE.
SEE ALSO
The full documentation for dd is maintained as a Texinfo
manual. If the info and dd programs are properly
installed at your site, the command
info dd
should give you access to the complete manual.
dd (fileutils) 4.1 April 2001 DD(1)
