01-28-2009
It's the output redirector. I wonder what Bourne called it. We old-timers say "bang" for !, "dollar" for $, "pound" or "hash" or "comment symbol" for "#". But in fact, I've only been around UNIX since the late 80's, so I may not be familiar with the ancient nomenclature.
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LEARN ABOUT DEBIAN
nettle-hash
SEXP-CONV(1) Nettle tools SEXP-CONV(1)
NAME
nettle-hash - compute message digests
SYNOPSIS
nettle-hash -a ALGORITHM [OPTIONS] [FILE]...
DESCRIPTION
This manual page documents briefly the nettle-hash command. This manual page was written for the Debian GNU/Linux distribution because the
original program does not have a manual page. Instead, it has documentation in the GNU Info format; see below.
nettle-hash is a program that computes various message digests. The output is different from the familiar md5sum and sha*sum family. For
each file, the file name and a colon is printed first, unless input is read from standard input, in which case nothing is printed. Then the
hash is printed in chunks of 64 bits (16 hexadecimal digits) followed by the name of the algorithm. In raw (binary) mode, the hash is not
split in chunks and is not followed by a newline.
OPTIONS
This program follows the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included
below. For a complete description, see the Info files.
-a, --algorithm=algorithm
Compute hash using algorithm.
-l, --length=length
Truncate digests at length octets. It is an error to specify a length greater than the normal length of the selected digest.
--list List supported hash algorithms.
--help Show summary of options.
-V, --version
Show version of program.
SEE ALSO
md5sum(1), sha1sum(1), etc.
AUTHOR
This manual page was originally written by Magnus Holmgren <holmgren@debian.org>, for the Debian GNU/Linux system (but may be used by oth-
ers).
nettle 2.2 July 2011 SEXP-CONV(1)