Question

我有一个看似跟随的xml。

<rootNode>  
   <appender name="SERVER_FILE" class="org.apache.log4j.RollingFileAppender">
      <param name="File" value="C:/COM_FIND.log"/>
      <param name="Threshold" value="INFO"/>
      <param name="Append" value="true"/>
      <param name="MaxFileSize" value="5000KB"/>
      <param name="MaxBackupIndex" value="5"/>
      <layout class="org.apache.log4j.PatternLayout">
         <param name="ConversionPattern" value="%d %-5p [%c] %m%n"/>
      </layout>
   </appender>   
   <appender name="CAT_FILE" class="org.apache.log4j.RollingFileAppender">
      <param name="File" value="C:/COM_Now.log"/>
      <param name="Threshold" value="INFO"/>
      <param name="Append" value="true"/>
      <param name="MaxFileSize" value="5000KB"/>
      <param name="MaxBackupIndex" value="2"/>
      <layout class="org.apache.log4j.PatternLayout">
         <param name="ConversionPattern" value="%d %-5p [%c] %m%n"/>
      </layout>
   </appender> 
    <appender name="SERVER_FILE" class="org.apache.log4j.RollingFileAppender">
         <param name="File" value="C:/COM_A.log"/>
         <param name="Threshold" value="INFO"/>
         <param name="Append" value="true"/>
         <param name="MaxFileSize" value="5000KB"/>
         <param name="MaxBackupIndex" value="5"/>
         <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d %-5p [%c] %m%n"/>
         </layout>
   </appender>   
    <appender name="SERVER_FILE" class="org.apache.log4j.RollingFileAppender">
         <param name="File" value="C:/COM_Find.log"/>
         <param name="Threshold" value="INFO"/>
         <param name="Append" value="true"/>
         <param name="MaxFileSize" value="5000KB"/>
         <param name="MaxBackupIndex" value="5"/>
         <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d %-5p [%c] %m%n"/>
         </layout>
   </appender>   
   <logger name="com.mycompany">
      <level value="INFO"/>
      <appender-ref ref="SERVER_FILE"/>
    </logger>
</rootNode>

是的。它是log4j xml的摘录。我基本上想要做的是删除包含单词＆＃39; COM_Find.log＆＃39;的所有appender标签/元素（from）。使用sed命令。到目前为止我所拥有的是： -

sed -e '/<appender/,/<\/appender>/{H;$!d;}' -e 'x;/COM_Find.log/d' file.xml

从第一个appender到最后一个的贪婪搜索是什么，并删除它们之间的所有内容。我只想删除那些特定的appender标签/元素（from）。

输出应为： -

<rootNode>  
   <appender name="CAT_FILE" class="org.apache.log4j.RollingFileAppender">
      <param name="File" value="C:/COM_Now.log"/>
      <param name="Threshold" value="INFO"/>
      <param name="Append" value="true"/>
      <param name="MaxFileSize" value="5000KB"/>
      <param name="MaxBackupIndex" value="2"/>
      <layout class="org.apache.log4j.PatternLayout">
         <param name="ConversionPattern" value="%d %-5p [%c] %m%n"/>
      </layout>
   </appender> 
    <appender name="SERVER_FILE" class="org.apache.log4j.RollingFileAppender">
         <param name="File" value="C:/COM_A.log"/>
         <param name="Threshold" value="INFO"/>
         <param name="Append" value="true"/>
         <param name="MaxFileSize" value="5000KB"/>
         <param name="MaxBackupIndex" value="5"/>
         <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d %-5p [%c] %m%n"/>
         </layout>
   </appender>   
   <logger name="com.mycompany">
      <level value="INFO"/>
      <appender-ref ref="SERVER_FILE"/>
    </logger>
</rootNode>

有人可以帮助我吗？

Answer 1

sed -ne '/rootNode/{ p; b }; /<appender /{ h; b }; /<logger /{ h; b }; H; /<\/logger>/{ x; p; b; }; /<\/appender>/{ x; /COM_Find[.]log/b; /COM_FIND[.]log/b; p }' file

输出：

<rootNode>  
   <appender name="CAT_FILE" class="org.apache.log4j.RollingFileAppender">
      <param name="File" value="C:/COM_Now.log"/>
      <param name="Threshold" value="INFO"/>
      <param name="Append" value="true"/>
      <param name="MaxFileSize" value="5000KB"/>
      <param name="MaxBackupIndex" value="2"/>
      <layout class="org.apache.log4j.PatternLayout">
         <param name="ConversionPattern" value="%d %-5p [%c] %m%n"/>
      </layout>
   </appender> 
    <appender name="SERVER_FILE" class="org.apache.log4j.RollingFileAppender">
         <param name="File" value="C:/COM_A.log"/>
         <param name="Threshold" value="INFO"/>
         <param name="Append" value="true"/>
         <param name="MaxFileSize" value="5000KB"/>
         <param name="MaxBackupIndex" value="5"/>
         <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d %-5p [%c] %m%n"/>
         </layout>
   </appender>   
   <logger name="com.mycompany">
      <level value="INFO"/>
      <appender-ref ref="SERVER_FILE"/>
    </logger>
</rootNode>

awk的另一个：

awk '{ p = 1 } /<appender /{ t = $0; while (getline > 0) { t = t ORS $0; if (/COM_FIND[.]log/ || /COM_Find[.]log/) p = 0; if (/<\/appender>/) break } $0 = t } p' file

使用IGNORECASE的GNU awk：

gawk -v IGNORECASE=1 '{ p = 1 } /<appender /{ t = $0; while (getline > 0) { t = t ORS $0; if (/COM_FIND[.]log/) p = 0; if (/<\/appender>/) break } $0 = t } p' file

Answer 2

我不明白你想删掉整条线吗？

如果是，你可以grep：

grep -v "COM_Find.log" yourfile.xml > newfile.xml

如果使用sed包含某些文本，则删除xml中的节点

2 个答案: