GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
RedHat 9.0(Shrike) |
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dd(1) |
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dd − convert and copy a file
dd [OPTION]...
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
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−−help |
display this help and exit |
−−version
output version information and exit
BLOCKS and BYTES may be followed by the following multiplicative suffixes: xM M, c 1, w 2, b 512, kB 1000, K 1024, MB 1,000,000, M 1,048,576, GB 1,000,000,000, G 1,073,741,824, and so on for T, P, E, Z, Y. Each KEYWORD may be:
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ascii |
from EBCDIC to ASCII | ||
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ebcdic |
from ASCII to EBCDIC | ||
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ibm |
from ASCII to alternated EBCDIC | ||
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block |
pad newline-terminated records with spaces to cbs-size |
unblock
replace trailing spaces in cbs-size records with newline
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lcase |
change upper case to lower case |
notrunc
do not truncate the output file
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ucase |
change lower case to upper case |
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swab |
swap every pair of input bytes |
noerror
continue after read errors
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sync |
pad every input block with NULs to ibs-size; when used |
with block or unblock, pad with spaces rather than NULs
Written by Paul Rubin, David MacKenzie, and Stuart Kemp.
Report bugs to <bug-coreutils@gnu.org>.
Copyright
© 2002 Free Software Foundation, Inc.
This is free software; see the source for copying
conditions. There is NO warranty; not even for
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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.
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dd(1) | |