How to remove XML Tag Blocks from the command line with one or more occurrences-CodePudding

I have an xml file that looks something like this:

<xml>
  <trkseg>
  <note>
    <to>A</to>
    <from>B</from>
    <body>
      keep this
    </body>
  </trkseg>
  <trkseg>
  </note>
  ...
  </trkseg>
</xml>

And I wanted to remove all the following code. This combination of tags can occur more than once in the file:

</trkseg>
<trkseg>

Any tips on how to fix this?

What I expected was this:

<xml>
  <trkseg>
  <note>
    <to>A</to>
    <from>B</from>
    <body>
      keep this
    </body>
  </note>
  ...
  </trkseg>
</xml>

I tried using this sed command but doesn't work the way I want:

sed -i '' -e '/<\/trkseg>/,/<trkseg>/d' my-file.xml

I get this result:

<xml>
  <trkseg>
  <note>
    <to>A</to>
    <from>B</from>
    <body>
      keep this
    </body>
  </note>
  ...

CodePudding user response：

I would do this with an XSLT transformation. In XSLT 3.0 it's:

<xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  version="3.0">
  <xsl:mode on-no-match="shallow-copy"/>
  <xsl:template match="trk">
    <xsl:copy-of select="* except *:trkseg"/>
    <xsl:copy select="*:trkseg[1]">
      <xsl:copy-of select="*:trkseg/*"/>
    </xsl:copy>
  </xsl:template>
</xsl:transform>

CodePudding user response：

This is the actual file that I want to change with the sed command. The sed command doesn't work. It removes the closing </trkseg> in both cases. The 'fake xml file' and the gpx file.

<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<gpx xmlns:tp1="http://www.garmin.com/xmlschemas/TrackPointExtension/v1" xmlns:ql="http://www.qlandkarte.org/xmlschemas/v1.1" version="1.1" xmlns:gpxdata="http://www.cluetrust.com/XML/GPXDATA/1/0" xmlns:gpxx="http://www.garmin.com/xmlschemas/GpxExtensions/v3" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:gpxtpx="http://www.garmin.com/xmlschemas/TrackPointExtension/v1" creator="QMapShack 1.15.2 http://www.qlandkarte.org/" xmlns="http://www.topografix.com/GPX/1/1" xmlns:rmc="urn:net:trekbuddy:1.0:nmea:rmc" xmlns:wptx1="http://www.garmin.com/xmlschemas/WaypointExtension/v1" xsi:schemaLocation="http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd http://www.garmin.com/xmlschemas/GpxExtensions/v3 http://www.garmin.com/xmlschemas/GpxExtensionsv3.xsd http://www.garmin.com/xmlschemas/TrackPointExtension/v1 http://www.garmin.com/xmlschemas/TrackPointExtensionv1.xsd http://www.garmin.com/xmlschemas/WaypointExtension/v1 http://www.garmin.com/xmlschemas/WaypointExtensionv1.xsd http://www.qlandkarte.org/xmlschemas/v1.1 http://www.qlandkarte.org/xmlschemas/v1.1/ql-extensions.xsd http://www.cluetrust.com/XML/GPXDATA/1/0 http://www.cluetrust.com/Schemas/gpxdata10.xsd">
 <metadata>
  <name>trackcombo</name>
  <time>2022-11-28T10:58:13.332Z</time>
 </metadata>
 <trk>
  <name>trackcombo</name>
  <extensions>
   <ql:key>aad886cf09191877c01ef7c4fb50eaa8</ql:key>
   <ql:flags>3</ql:flags>
   <gpxx:TrackExtension>
    <gpxx:DisplayColor>DarkBlue</gpxx:DisplayColor>
   </gpxx:TrackExtension>
  </extensions>
  <trkseg>
   <trkpt lon="-2.20870076" lat="54.29765770">
    <extensions>
     <ql:flags>16</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.20883551" lat="54.29805178">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.20864687" lat="54.29861924">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.20888941" lat="54.29893449">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.20967095" lat="54.30082597">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.20967095" lat="54.30159829">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.21031773" lat="54.30255974">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.21282403" lat="54.30241789">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.21427930" lat="54.30162981">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.21514169" lat="54.30150372">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.21638136" lat="54.30194504">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.21692035" lat="54.30276463">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.21762104" lat="54.30330051">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.21896851" lat="54.30359996">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22047768" lat="54.30364725">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22093582" lat="54.30359996">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
  </trkseg>
  <trkseg>
   <trkpt lon="-2.22091606" lat="54.30363727">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22087294" lat="54.30377123">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.21985155" lat="54.30396824">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.21962518" lat="54.30404704">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.21980843" lat="54.30442530">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22023513" lat="54.30487710">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22056302" lat="54.30512663">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22091336" lat="54.30539193">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22156015" lat="54.30583847">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22213507" lat="54.30599081">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22280881" lat="54.30637430">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22338822" lat="54.30691538">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
  </trkseg>
  <trkseg>
   <trkpt lon="-2.22332624" lat="54.30695373">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22281060" lat="54.30745383">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22225724" lat="54.30806791">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22195541" lat="54.30859742">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22192397" lat="54.30882540">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22160327" lat="54.30903131">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22138947" lat="54.30928135">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22109392" lat="54.31018956">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22038066" lat="54.31123957">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.22025040" lat="54.31134200">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.21998540" lat="54.31142867">
    <extensions>
     <ql:flags>0</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
   <trkpt lon="-2.21993150" lat="54.31153635">
    <extensions>
     <ql:flags>16</ql:flags>
     <ql:activity>0</ql:activity>
    </extensions>
   </trkpt>
  </trkseg>
 </trk>
 <extensions>
  <ql:key>b4194f3799c17e4cb8c5607b2bbf46b7</ql:key>
  <ql:sortingRoadbook>0</ql:sortingRoadbook>
  <ql:sortingFolder>0</ql:sortingFolder>
  <ql:correlation>1</ql:correlation>
  <ql:invalidDataOk>0</ql:invalidDataOk>
 </extensions>
</gpx>