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| 76 | magnus | 1 | .\" Hey, EMACS: -*- nroff -*- |
| 2 | .\" First parameter, NAME, should be all caps |
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| 3 | .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection |
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| 4 | .\" other parameters are allowed: see man(7), man(1) |
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| 5 | .TH SEXP\-CONV 1 "July 2011" "nettle 2.2" "Nettle tools" |
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| 6 | .\" Please adjust this date whenever revising the manpage. |
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| 7 | .SH NAME |
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| 8 | nettle\-hash \- compute message digests |
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| 9 | .SH SYNOPSIS |
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| 10 | .B nettle-hash -a |
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| 11 | .I ALGORITHM |
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| 12 | .RI [ OPTIONS ] |
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| 13 | .RI [ FILE ]... |
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| 14 | .SH DESCRIPTION |
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| 15 | This manual page documents briefly the |
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| 16 | .B nettle\-hash |
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| 17 | command. |
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| 18 | This manual page was written for the Debian GNU/Linux distribution |
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| 19 | because the original program does not have a manual page. |
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| 20 | Instead, it has documentation in the GNU Info format; see below. |
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| 21 | .PP |
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| 22 | .\" TeX users may be more comfortable with the \fB<whatever>\fP and |
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| 23 | .\" \fI<whatever>\fP escape sequences to invode bold face and italics, |
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| 24 | .\" respectively. |
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| 25 | \fBnettle\-hash\fP is a program that computes various message digests. |
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| 26 | The output is different from the familiar md5sum and sha*sum |
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| 27 | family. For each file, the file name and a colon is printed first, |
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| 28 | unless input is read from standard input, in which case nothing is |
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| 29 | printed. Then the hash is printed in chunks of 64 bits (16 hexadecimal |
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| 79 | magnus | 30 | digits) followed by the name of the algorithm. In raw (binary) mode, |
| 76 | magnus | 31 | the hash is not split in chunks and is not followed by a newline. |
| 32 | |||
| 33 | .SH OPTIONS |
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| 34 | This program follows the usual GNU command line syntax, with long |
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| 35 | options starting with two dashes (`-'). A summary of options is |
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| 36 | included below. For a complete description, see the Info files. |
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| 37 | .TP |
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| 38 | .B \-a, \-\-algorithm=\fIalgorithm\fP |
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| 39 | Compute hash using \fIalgorithm\fP. |
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| 40 | .TP |
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| 41 | .B \-l, \-\-length=\fIlength\fP |
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| 42 | Truncate digests at \fIlength\fP octets. It is an error to specify a |
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| 43 | \fIlength\fP greater than the normal length of the selected digest. |
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| 44 | .TP |
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| 45 | .B \-\-list |
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| 46 | List supported hash algorithms. |
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| 47 | .TP |
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| 48 | .B \-\-help |
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| 49 | Show summary of options. |
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| 50 | .TP |
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| 51 | .B \-V, \-\-version |
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| 52 | Show version of program. |
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| 53 | .SH SEE ALSO |
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| 54 | .BR md5sum (1), |
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| 55 | .BR sha1sum (1), |
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| 56 | etc. |
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| 57 | .SH AUTHOR |
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| 58 | This manual page was originally written by Magnus Holmgren <holmgren@debian.org>, |
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| 59 | for the Debian GNU/Linux system (but may be used by others). |