What does this sed command do? How to change it?

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I do not understand what does this command do:



 grep '<span id="geodata" class="geo">[-0-9.]*; [-0-9.]*</span>' -R articles/ --only-matching | sed 's@articles//@@' | sed 's@:<span id=.geodata. class=.geo.>@ @' | sed 's@; @ @' | sed 's@</span>@@' | sort -u -b -k1 > geocodes_from_html.txt


Some background: I'm processing wiki articles, I have a folder ("articles") full of them. The processing script was written years ago when the geo information about a place used to like that:



 <span id="geodata" class="geo">[-0-9.]*; [-0-9.]*</span>


Now it looks like that:



 <abbr class="latitude">[-0-9.]*</abbr><abbr class="longitude">[-0-9.]*</abbr>


What changes do I need to make to make the command work?










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  • 3




    That code is a lousy way to extract the two coordinates from that html element... Instead of changing it you should use tools designed for this job...
    – don_crissti
    Sep 12 '17 at 13:27















up vote
0
down vote

favorite












I do not understand what does this command do:



 grep '<span id="geodata" class="geo">[-0-9.]*; [-0-9.]*</span>' -R articles/ --only-matching | sed 's@articles//@@' | sed 's@:<span id=.geodata. class=.geo.>@ @' | sed 's@; @ @' | sed 's@</span>@@' | sort -u -b -k1 > geocodes_from_html.txt


Some background: I'm processing wiki articles, I have a folder ("articles") full of them. The processing script was written years ago when the geo information about a place used to like that:



 <span id="geodata" class="geo">[-0-9.]*; [-0-9.]*</span>


Now it looks like that:



 <abbr class="latitude">[-0-9.]*</abbr><abbr class="longitude">[-0-9.]*</abbr>


What changes do I need to make to make the command work?










share|improve this question



















  • 3




    That code is a lousy way to extract the two coordinates from that html element... Instead of changing it you should use tools designed for this job...
    – don_crissti
    Sep 12 '17 at 13:27













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I do not understand what does this command do:



 grep '<span id="geodata" class="geo">[-0-9.]*; [-0-9.]*</span>' -R articles/ --only-matching | sed 's@articles//@@' | sed 's@:<span id=.geodata. class=.geo.>@ @' | sed 's@; @ @' | sed 's@</span>@@' | sort -u -b -k1 > geocodes_from_html.txt


Some background: I'm processing wiki articles, I have a folder ("articles") full of them. The processing script was written years ago when the geo information about a place used to like that:



 <span id="geodata" class="geo">[-0-9.]*; [-0-9.]*</span>


Now it looks like that:



 <abbr class="latitude">[-0-9.]*</abbr><abbr class="longitude">[-0-9.]*</abbr>


What changes do I need to make to make the command work?










share|improve this question















I do not understand what does this command do:



 grep '<span id="geodata" class="geo">[-0-9.]*; [-0-9.]*</span>' -R articles/ --only-matching | sed 's@articles//@@' | sed 's@:<span id=.geodata. class=.geo.>@ @' | sed 's@; @ @' | sed 's@</span>@@' | sort -u -b -k1 > geocodes_from_html.txt


Some background: I'm processing wiki articles, I have a folder ("articles") full of them. The processing script was written years ago when the geo information about a place used to like that:



 <span id="geodata" class="geo">[-0-9.]*; [-0-9.]*</span>


Now it looks like that:



 <abbr class="latitude">[-0-9.]*</abbr><abbr class="longitude">[-0-9.]*</abbr>


What changes do I need to make to make the command work?







sed html






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edited Nov 23 at 14:17









Rui F Ribeiro

38.3k1476127




38.3k1476127










asked Sep 12 '17 at 12:57









David

32




32







  • 3




    That code is a lousy way to extract the two coordinates from that html element... Instead of changing it you should use tools designed for this job...
    – don_crissti
    Sep 12 '17 at 13:27













  • 3




    That code is a lousy way to extract the two coordinates from that html element... Instead of changing it you should use tools designed for this job...
    – don_crissti
    Sep 12 '17 at 13:27








3




3




That code is a lousy way to extract the two coordinates from that html element... Instead of changing it you should use tools designed for this job...
– don_crissti
Sep 12 '17 at 13:27





That code is a lousy way to extract the two coordinates from that html element... Instead of changing it you should use tools designed for this job...
– don_crissti
Sep 12 '17 at 13:27











1 Answer
1






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up vote
1
down vote



accepted










The provided grep command searches for the string <span [...]</span> in any file, which is in the directory articles. The following sed commands are replacing several strings.



For example sed s@articles/@@ (with one slash / only) can be read as: sed search@this_string@replace_with_this@; the string articles/ will be replaced by nothing. Instead of piping from one sed to the next, you can combine all scripts to one with the same result.



If you do not want to use any other commands to extract the coordinates, you could use:



grep '<abbr class="latitude">[-0-9.]*</abbr><abbr class="longitude">[-0-9.]*</abbr>' -R articles --only-matching | sed 's@articles/@@;s@:<abbr class="latitude">@ @;s@<abbr class="longitude">@ @;s@</abbr>@@g' | sort -u -b -k1 >geocodes_from_html.txt





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    1 Answer
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    active

    oldest

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    1 Answer
    1






    active

    oldest

    votes









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    oldest

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    active

    oldest

    votes








    up vote
    1
    down vote



    accepted










    The provided grep command searches for the string <span [...]</span> in any file, which is in the directory articles. The following sed commands are replacing several strings.



    For example sed s@articles/@@ (with one slash / only) can be read as: sed search@this_string@replace_with_this@; the string articles/ will be replaced by nothing. Instead of piping from one sed to the next, you can combine all scripts to one with the same result.



    If you do not want to use any other commands to extract the coordinates, you could use:



    grep '<abbr class="latitude">[-0-9.]*</abbr><abbr class="longitude">[-0-9.]*</abbr>' -R articles --only-matching | sed 's@articles/@@;s@:<abbr class="latitude">@ @;s@<abbr class="longitude">@ @;s@</abbr>@@g' | sort -u -b -k1 >geocodes_from_html.txt





    share|improve this answer


























      up vote
      1
      down vote



      accepted










      The provided grep command searches for the string <span [...]</span> in any file, which is in the directory articles. The following sed commands are replacing several strings.



      For example sed s@articles/@@ (with one slash / only) can be read as: sed search@this_string@replace_with_this@; the string articles/ will be replaced by nothing. Instead of piping from one sed to the next, you can combine all scripts to one with the same result.



      If you do not want to use any other commands to extract the coordinates, you could use:



      grep '<abbr class="latitude">[-0-9.]*</abbr><abbr class="longitude">[-0-9.]*</abbr>' -R articles --only-matching | sed 's@articles/@@;s@:<abbr class="latitude">@ @;s@<abbr class="longitude">@ @;s@</abbr>@@g' | sort -u -b -k1 >geocodes_from_html.txt





      share|improve this answer
























        up vote
        1
        down vote



        accepted







        up vote
        1
        down vote



        accepted






        The provided grep command searches for the string <span [...]</span> in any file, which is in the directory articles. The following sed commands are replacing several strings.



        For example sed s@articles/@@ (with one slash / only) can be read as: sed search@this_string@replace_with_this@; the string articles/ will be replaced by nothing. Instead of piping from one sed to the next, you can combine all scripts to one with the same result.



        If you do not want to use any other commands to extract the coordinates, you could use:



        grep '<abbr class="latitude">[-0-9.]*</abbr><abbr class="longitude">[-0-9.]*</abbr>' -R articles --only-matching | sed 's@articles/@@;s@:<abbr class="latitude">@ @;s@<abbr class="longitude">@ @;s@</abbr>@@g' | sort -u -b -k1 >geocodes_from_html.txt





        share|improve this answer














        The provided grep command searches for the string <span [...]</span> in any file, which is in the directory articles. The following sed commands are replacing several strings.



        For example sed s@articles/@@ (with one slash / only) can be read as: sed search@this_string@replace_with_this@; the string articles/ will be replaced by nothing. Instead of piping from one sed to the next, you can combine all scripts to one with the same result.



        If you do not want to use any other commands to extract the coordinates, you could use:



        grep '<abbr class="latitude">[-0-9.]*</abbr><abbr class="longitude">[-0-9.]*</abbr>' -R articles --only-matching | sed 's@articles/@@;s@:<abbr class="latitude">@ @;s@<abbr class="longitude">@ @;s@</abbr>@@g' | sort -u -b -k1 >geocodes_from_html.txt






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        share|improve this answer








        edited Sep 12 '17 at 14:45









        Philippos

        5,98211547




        5,98211547










        answered Sep 12 '17 at 14:36









        jnL

        262




        262



























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