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Top Forums UNIX for Beginners Questions & Answers How to parse a specifc value between html tags using sed? Post 303014487 by naittis on Tuesday 13th of March 2018 11:59:49 AM
Old 03-13-2018
How to parse a specifc value between html tags using sed?

Hi,

im trying to read a Temperature value from html code.

So far i have managed to reduce the whole html page down to this single line with the following sed command:
Code:
sed -n '/Temperature/p' $temp_temperature | tee temp_string
<TD width='350'>Temperature :</td><td>25 &deg;C</td></tr></table><TABLE width= "100%" border="0" cellpadding='5' cellspacing="0">

Now the problem is how to get the value "25" out from that line im left with. There are 2 <td> tags in this line of html and i cannot figure out the sed expression to save that "25" into a variable that i can use with the rest of my bash script.

Heres one of the examples that didnt work for me:
Code:
sed 's/><td\(.*[^<>]\+\?>\)\(.*\)&deg/\2/g' sed_test.txt

Can anyone help me out with this?
 

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TIDY_GET_BODY(3)							 1							  TIDY_GET_BODY(3)

tidy::body - Returns atidyNodeobject starting from the <body> tag of the tidy parse tree

       Object oriented style

SYNOPSIS
tidyNode tidy::body (void ) DESCRIPTION
Procedural style tidyNode tidy_get_body (tidy $object) Returns a tidyNode object starting from the <body> tag of the tidy parse tree. PARAMETERS
o $object - The Tidy object. RETURN VALUES
Returns a tidyNode object starting from the <body> tag of the tidy parse tree. EXAMPLES
Example #1 tidy.getBody(3) example <?php $html = ' <html> <head> <title>test</title> </head> <body> <p>paragraph</p> </body> </html>'; $tidy = tidy_parse_string($html); $body = $tidy->Body(); echo $body->value; ?> The above example will output: <body> <p>paragraph</p> </body> NOTES
Note This function is only available with Zend Engine 2 (PHP >= 5.0.0). SEE ALSO
tidy.head(3), tidy.html(3). PHP Documentation Group TIDY_GET_BODY(3)
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