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Diffstat (limited to 'coreutils-5.3.0-bin/man/cat1/dd.1.txt')
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diff --git a/coreutils-5.3.0-bin/man/cat1/dd.1.txt b/coreutils-5.3.0-bin/man/cat1/dd.1.txt new file mode 100644 index 0000000..0a89f04 --- /dev/null +++ b/coreutils-5.3.0-bin/man/cat1/dd.1.txt @@ -0,0 +1,164 @@ +DD(1) User Commands DD(1) + + + + + +NAME + dd - convert and copy a file + +SYNOPSIS + dd [OPERAND]... + dd OPTION + +DESCRIPTION + Copy a file, converting and formatting according to the + operands. + + bs=BYTES + force ibs=BYTES and obs=BYTES + + cbs=BYTES + convert BYTES bytes at a time + + conv=CONVS + convert the file as per the comma separated sym- + bol list + + count=BLOCKS + copy only BLOCKS input blocks + + ibs=BYTES + read BYTES bytes at a time + + if=FILE + read from FILE instead of stdin + + iflag=FLAGS + read as per the comma separated symbol list + + obs=BYTES + write BYTES bytes at a time + + of=FILE + write to FILE instead of stdout + + oflag=FLAGS + write as per the comma separated symbol list + + seek=BLOCKS + skip BLOCKS obs-sized blocks at start of output + + skip=BLOCKS + skip BLOCKS ibs-sized blocks at start of input + + status=noxfer + suppress transfer statistics + + BLOCKS and BYTES may be followed by the following multi- + plicative suffixes: xM M, c 1, w 2, b 512, kB 1000, K + 1024, MB 1000*1000, M 1024*1024, GB 1000*1000*1000, G + 1024*1024*1024, and so on for T, P, E, Z, Y. + + Each CONV symbol may be: + + ascii from EBCDIC to ASCII + + ebcdic from ASCII to EBCDIC + + ibm from ASCII to alternate 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 + + nocreat + do not create the output file + + excl fail if the output file already exists + + 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 + + fdatasync physically write output file data + before finishing fsync likewise, but also + write metadata + + Each FLAG symbol may be: + + append append mode (makes sense only for output) + + direct use direct I/O for data + + dsync use synchronized I/O for data + + sync likewise, but also for metadata + + nonblock + use non-blocking I/O + + nofollow + do not follow symlinks + + noctty do not assign controlling terminal from file + + Sending a SIGUSR1 signal to a running `dd' process makes + it print I/O statistics to standard error, then to + resume copying. + + $ dd if=/dev/zero of=/dev/null& pid=$! + $ kill -USR1 $pid; sleep 1; kill $pid + + 18335302+0 records in 18335302+0 records out + 9387674624 bytes (9.4 GB) copied, 34.6279 sec- + onds, 271 MB/s + + Options are: + + --help display this help and exit + + --version + output version information and exit + +AUTHOR + Written by Paul Rubin, David MacKenzie, and Stuart Kemp. + +REPORTING BUGS + Report bugs to <bug-coreutils@gnu.org>. + +COPYRIGHT + Copyright (C) 2004 Free Software Foundation, Inc. + This is free software; see the source for copying condi- + tions. There is NO warranty; not even for MERCHANTABIL- + ITY 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 (coreutils) 5.3.0 November 2004 DD(1) |