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Full Discussion: How to parse a specifc value between html tags using sed?
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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LEARN ABOUT DEBIAN

fixnt

fixnt(1)							      Debian								  fixnt(1)

NAME

       fixnt - Filter for the Windows NT postscript printer driver.

SYNOPSIS

       fixnt < BADFILE.ps > GOODFILE.ps

DESCRIPTION

       The  Windows  NT  postscript  driver has a tendency to make broken postscript files, that are incompatible with psutils.  fixnt is a filter
       that fixes these problems, allowing the use of psnup(1).

       The filter takes the broken postscript file on stdin, and outputs a fixed postscript file on stdout.  It has no other form  for	invocation
       and takes no options on the command-line.

OPTIONS

       fixnt  takes no options.

BUGS

       fixnt does not check for NTPSOct94.  For a workaround, use a sed(1) command to replace 'NTPSOct94' with 'NTPSOct95', like so:
	      sed 's/NTPSOct94/NTPSOct95/g'
       This is particularly important for Windows NT 3.5 users.

AUTHOR

       fixnt   was   written   by   Holger   Bauer   <Holger.Bauer@topmail.de>,  Michael  Rath	<rath@itsm.uni-stuttgart.de>,  and  Akim  Demaille
       <demaille@inf.enst.fr>.

REPORTING BUGS

       Report bugs to the Authors, but avoid sending large postscript files.

       Patches are always welcome; send to <bauer@itsm.uni-stuttgart.de>.

SEE ALSO

       psnup(1), sed(1)

a2ps								   February 2003							  fixnt(1)
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