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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 17:39:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 17:39:29 +0000
commit8ffec2a3aba6f114784e11f89ef1d57a096ae540 (patch)
treeccebcbad06203e8241a8e7249f8e6c478a3682ea /man/dd.1
parentInitial commit. (diff)
downloadcoreutils-8ffec2a3aba6f114784e11f89ef1d57a096ae540.tar.xz
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Adding upstream version 8.32.upstream/8.32upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.47.3.
+.TH DD "1" "March 2020" "GNU coreutils 8.32" "User Commands"
+.SH NAME
+dd \- convert and copy a file
+.SH SYNOPSIS
+.B dd
+[\fI\,OPERAND\/\fR]...
+.br
+.B dd
+\fI\,OPTION\/\fR
+.SH DESCRIPTION
+.\" Add any additional description here
+.PP
+Copy a file, converting and formatting according to the operands.
+.TP
+bs=BYTES
+read and write up to BYTES bytes at a time (default: 512);
+overrides ibs and obs
+.TP
+cbs=BYTES
+convert BYTES bytes at a time
+.TP
+conv=CONVS
+convert the file as per the comma separated symbol list
+.TP
+count=N
+copy only N input blocks
+.TP
+ibs=BYTES
+read up to BYTES bytes at a time (default: 512)
+.TP
+if=FILE
+read from FILE instead of stdin
+.TP
+iflag=FLAGS
+read as per the comma separated symbol list
+.TP
+obs=BYTES
+write BYTES bytes at a time (default: 512)
+.TP
+of=FILE
+write to FILE instead of stdout
+.TP
+oflag=FLAGS
+write as per the comma separated symbol list
+.TP
+seek=N
+skip N obs\-sized blocks at start of output
+.TP
+skip=N
+skip N ibs\-sized blocks at start of input
+.TP
+status=LEVEL
+The LEVEL of information to print to stderr;
+\&'none' suppresses everything but error messages,
+\&'noxfer' suppresses the final transfer statistics,
+\&'progress' shows periodic transfer statistics
+.PP
+N and BYTES may be followed by the following multiplicative suffixes:
+c=1, w=2, b=512, kB=1000, K=1024, MB=1000*1000, M=1024*1024, xM=M,
+GB=1000*1000*1000, G=1024*1024*1024, and so on for T, P, E, Z, Y.
+Binary prefixes can be used, too: KiB=K, MiB=M, and so on.
+.PP
+Each CONV symbol may be:
+.TP
+ascii
+from EBCDIC to ASCII
+.TP
+ebcdic
+from ASCII to EBCDIC
+.TP
+ibm
+from ASCII to alternate EBCDIC
+.TP
+block
+pad newline\-terminated records with spaces to cbs\-size
+.TP
+unblock
+replace trailing spaces in cbs\-size records with newline
+.TP
+lcase
+change upper case to lower case
+.TP
+ucase
+change lower case to upper case
+.TP
+sparse
+try to seek rather than write all\-NUL output blocks
+.TP
+swab
+swap every pair of input bytes
+.TP
+sync
+pad every input block with NULs to ibs\-size; when used
+with block or unblock, pad with spaces rather than NULs
+.TP
+excl
+fail if the output file already exists
+.TP
+nocreat
+do not create the output file
+.TP
+notrunc
+do not truncate the output file
+.TP
+noerror
+continue after read errors
+.TP
+fdatasync
+physically write output file data before finishing
+.TP
+fsync
+likewise, but also write metadata
+.PP
+Each FLAG symbol may be:
+.TP
+append
+append mode (makes sense only for output; conv=notrunc suggested)
+.TP
+direct
+use direct I/O for data
+.TP
+directory
+fail unless a directory
+.TP
+dsync
+use synchronized I/O for data
+.TP
+sync
+likewise, but also for metadata
+.TP
+fullblock
+accumulate full blocks of input (iflag only)
+.TP
+nonblock
+use non\-blocking I/O
+.TP
+noatime
+do not update access time
+.TP
+nocache
+Request to drop cache. See also oflag=sync
+.TP
+noctty
+do not assign controlling terminal from file
+.TP
+nofollow
+do not follow symlinks
+.TP
+count_bytes
+treat 'count=N' as a byte count (iflag only)
+.TP
+skip_bytes
+treat 'skip=N' as a byte count (iflag only)
+.TP
+seek_bytes
+treat 'seek=N' as a byte count (oflag only)
+.PP
+Sending a USR1 signal to a running 'dd' process makes it
+print I/O statistics to standard error and then resume copying.
+.PP
+Options are:
+.TP
+\fB\-\-help\fR
+display this help and exit
+.TP
+\fB\-\-version\fR
+output version information and exit
+.SH AUTHOR
+Written by Paul Rubin, David MacKenzie, and Stuart Kemp.
+.SH "REPORTING BUGS"
+GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
+.br
+Report any translation bugs to <https://translationproject.org/team/>
+.SH COPYRIGHT
+Copyright \(co 2020 Free Software Foundation, Inc.
+License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
+.br
+This is free software: you are free to change and redistribute it.
+There is NO WARRANTY, to the extent permitted by law.
+.SH "SEE ALSO"
+Full documentation <https://www.gnu.org/software/coreutils/dd>
+.br
+or available locally via: info \(aq(coreutils) dd invocation\(aq