03-18-2008
Problem in extracting vector data
Hi,
Currently I have two files; A and B.
File A has below data:-
-3 + <1 2 3 4 5 6 7 8 1 2 > - 1]
-2 + <8 8 3 4 0 3 7 9 1 3 > - 1]
-1 + <3 7 3 4 8 2 7 2 1 2 > - 1]
-3 + <2 2 3 4 3 1 7 8 8 2 > - 1]
and File B has below data:-
<9 1 1 4 2 6 3 8 8 9 >
From these two files, I try to do a cross product vector for these two files.
<1 2 3 4 5 6 7 8 1 2 >*<9 1 1 4 2 6 3 8 8 9 >
+<8 8 3 4 0 3 7 9 1 3 > *<9 1 1 4 2 6 3 8 8 9 >
+<3 7 3 4 8 2 7 2 1 2 > *<9 1 1 4 2 6 3 8 8 9 >
+<2 2 3 4 3 1 7 8 8 2 > *<9 1 1 4 2 6 3 8 8 9 >
Could anyone show me how I could extract the elements from these two files such as above?
As of now I could cat the file A but do not know how to extract elements from < on wards. And i do not know how I could perform division with elements form another file, file B.
Please help. Thanks alot.
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LEARN ABOUT DEBIAN
hxextract
HXEXTRACT(1) HTML-XML-utils HXEXTRACT(1)
NAME
hxextract - extract selected elements from a HTML or XML file
SYNOPSIS
hxextract [ -h | -? ] [ -x ] [ -s text ] [ -e text ] [ -b base ] element-or-class [ -c configfile | file-or-URL ]
DESCRIPTION
hxextract outputs all elements with a certain name and/or class.
Input must be well-formed, since no HTML heuristics are applied.
OPTIONS
The following options are supported:
-x Use XML format conventions.
-s text Insert text at the start of the output.
-e text Insert text at the end of the output.
-b base URL base
-c configfile
Read @chapter lines from configfile (lines must be of the form "@chapter filename") and extract elements from each of those
files.
-h, -? Print command usage.
OPERANDS
The following operands are supported:
element-or-class
The name of an element to extract (e.g., "H2"), or the name of a class preceded by "." (e.g., ".example") or a combination of
both (e.g., "H2.example").
file-or-URL
A file name or a URL. To read from standard input, use "-".
ENVIRONMENT
To use a proxy to retrieve remote files, set the environment variables http_proxy and ftp_proxy. E.g., http_proxy="http://localhost:8080/"
BUGS
Remote files (specified with a URL) are currently only supported for HTTP. Password-protected files or files that depend on HTTP "cookies"
are not handled. (You can use tools such as curl(1) or wget(1) to retrieve such files.)
SEE ALSO
hxselect(1)
6.x 10 Jul 2011 HXEXTRACT(1)