xq

Вывести значение всех узлов <version>:

xq -x //version

Пример

curl -s https://repo1.maven.org/maven2/org/apache/maven/maven/maven-metadata.xml | xq -x //version

4.0.0-rc.3
4.0.0
4.1.0
4.1.1
4.2.0
4.2.1
4.4.0
4.4.1
4.4.2
4.4.3
4.5.0
4.6.0

<?xml version="1.0" encoding="UTF-8"?>
<metadata>
  <groupId>com.simpligility.maven.plugins</groupId>
  <artifactId>android-maven-plugin</artifactId>
  <versioning>
    <latest>4.6.0</latest>
    <release>4.6.0</release>
    <versions>
      <version>4.0.0-rc.3</version>
      <version>4.0.0</version>
      <version>4.1.0</version>
      <version>4.1.1</version>
      <version>4.2.0</version>
      <version>4.2.1</version>
      <version>4.4.0</version>
      <version>4.4.1</version>
      <version>4.4.2</version>
      <version>4.4.3</version>
      <version>4.5.0</version>
      <version>4.6.0</version>
    </versions>
    <lastUpdated>20190509053843</lastUpdated>
  </versioning>
</metadata>