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.\"                                      Hey, EMACS: -*- nroff -*-
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.\"                                      Hey, EMACS: -*- nroff -*-
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.\" First parameter, NAME, should be all caps
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.\" First parameter, NAME, should be all caps
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.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
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.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
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.\" other parameters are allowed: see man(7), man(1)
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.\" other parameters are allowed: see man(7), man(1)
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.TH SEXP\-CONV 1 "July 2011" "nettle 2.2"  "Nettle tools"
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.TH SEXP\-CONV 1 "July 2011" "nettle 2.2"  "Nettle tools"
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.\" Please adjust this date whenever revising the manpage.
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.\" Please adjust this date whenever revising the manpage.
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.SH NAME
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.SH NAME
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nettle\-hash \- compute message digests
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nettle\-hash \- compute message digests
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.SH SYNOPSIS
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.SH SYNOPSIS
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.B nettle-hash -a
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.B nettle-hash -a
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.I ALGORITHM
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.I ALGORITHM
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.RI [ OPTIONS ]
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.RI [ OPTIONS ]
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.RI [ FILE ]...
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.RI [ FILE ]...
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.SH DESCRIPTION
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.SH DESCRIPTION
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This manual page documents briefly the
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This manual page documents briefly the
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.B nettle\-hash
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.B nettle\-hash
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command.
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command.
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This manual page was written for the Debian GNU/Linux distribution
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This manual page was written for the Debian GNU/Linux distribution
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because the original program does not have a manual page.
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because the original program does not have a manual page.
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Instead, it has documentation in the GNU Info format; see below.
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Instead, it has documentation in the GNU Info format; see below.
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.PP
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.PP
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.\" TeX users may be more comfortable with the \fB<whatever>\fP and
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.\" TeX users may be more comfortable with the \fB<whatever>\fP and
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.\" \fI<whatever>\fP escape sequences to invode bold face and italics, 
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.\" \fI<whatever>\fP escape sequences to invode bold face and italics, 
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.\" respectively.
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.\" respectively.
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\fBnettle\-hash\fP is a program that computes various message digests.
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\fBnettle\-hash\fP is a program that computes various message digests.
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The output is different from the familiar md5sum and sha*sum
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The output is different from the familiar md5sum and sha*sum
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family. For each file, the file name and a colon is printed first,
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family. For each file, the file name and a colon is printed first,
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unless input is read from standard input, in which case nothing is
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unless input is read from standard input, in which case nothing is
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printed. Then the hash is printed in chunks of 64 bits (16 hexadecimal
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printed. Then the hash is printed in chunks of 64 bits (16 hexadecimal
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digits) followed by the name of the algorithm. In raw (binary) mode,
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digits) followed by the name of the algorithm. In raw (binary) mode,
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the hash is not split in chunks and is not followed by a newline.
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the hash is not split in chunks and is not followed by a newline.
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.SH OPTIONS
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.SH OPTIONS
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This program follows the usual GNU command line syntax, with long
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This program follows the usual GNU command line syntax, with long
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options starting with two dashes (`-').  A summary of options is
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options starting with two dashes (`-').  A summary of options is
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included below.  For a complete description, see the Info files.
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included below.  For a complete description, see the Info files.
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.TP
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.TP
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.B \-a, \-\-algorithm=\fIalgorithm\fP
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.B \-a, \-\-algorithm=\fIalgorithm\fP
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Compute hash using \fIalgorithm\fP.
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Compute hash using \fIalgorithm\fP.
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.TP
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.TP
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.B \-l, \-\-length=\fIlength\fP
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.B \-l, \-\-length=\fIlength\fP
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Truncate digests at \fIlength\fP octets. It is an error to specify a
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Truncate digests at \fIlength\fP octets. It is an error to specify a
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\fIlength\fP greater than the normal length of the selected digest.
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\fIlength\fP greater than the normal length of the selected digest.
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.TP
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.TP
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.B \-\-list
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.B \-\-list
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List supported hash algorithms.
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List supported hash algorithms.
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.TP
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.TP
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.B \-\-help
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.B \-\-help
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Show summary of options.
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Show summary of options.
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.TP
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.TP
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.B \-V, \-\-version
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.B \-V, \-\-version
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Show version of program.
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Show version of program.
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.SH SEE ALSO
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.SH SEE ALSO
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.BR md5sum (1),
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.BR md5sum (1),
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.BR sha1sum (1),
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.BR sha1sum (1),
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etc.
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etc.
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.SH AUTHOR
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.SH AUTHOR
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This manual page was originally written by Magnus Holmgren <holmgren@debian.org>,
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This manual page was originally written by Magnus Holmgren <holmgren@debian.org>,
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for the Debian GNU/Linux system (but may be used by others).
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for the Debian GNU/Linux system (but may be used by others).