Question

我试图将值10替换为值5，其中testname =＆＃34; TG1＆＃34;

改变这个：

<stringProp name="ThreadGroup.num_threads">10</stringProp>

To This：

 <stringProp name="ThreadGroup.num_threads">5</stringProp>

代码段示例

在：

<ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="TG1" enabled="true">
    <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
    </elementProp>
    <stringProp name="ThreadGroup.num_threads">10</stringProp>
  </ThreadGroup>
<ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="TG2" enabled="true">
    <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
    </elementProp>
    <stringProp name="ThreadGroup.num_threads">50</stringProp>
  </ThreadGroup>

后：

<ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="TG1" enabled="true">
    <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
    </elementProp>
    <stringProp name="ThreadGroup.num_threads">5</stringProp>
  </ThreadGroup>
<ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="TG2" enabled="true">
    <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
    </elementProp>
    <stringProp name="ThreadGroup.num_threads">50</stringProp>
  </ThreadGroup>

Answer 1

假设您确实拥有有效的XML，这实际上是一个xpath问题：

xmlstarlet ed \
    --update '//ThreadGroup[@testname="TG1"]//stringProp[@name="ThreadGroup.num_threads"]' \
    --value 5 \
    file.xml

要保存文件，请将ed更改为ed --inplace

Answer 2

试试这个awk-command：

awk '$0 ~ "testclass=\"ThreadGroup\"" && $0 ~ "testname=\"TG1\""{replace=1}
     $0 ~ "testclass=\"ThreadGroup\"" && $0 !~ "testname=\"TG1\""{replace=0}
     replace{gsub("name=\"ThreadGroup.num_threads\">10</stringProp>",
                  "name=\"ThreadGroup.num_threads\">5</stringProp>",$0)}1' in.txt

如果name="ThreadGroup.num_threads">10</stringProp>位于name="ThreadGroup.num_threads">5</stringProp>

之内，它会将所有<... testclass="ThreadGroup" testname="TG1" ...>替换为

<dict>
   <key>CFBundleTypeName</key>
   <string>My File Format</string>
   <key>CFBundleTypeIconFiles</key>
       <array>
           <string>MySmallIcon.png</string>
           <string>MyLargeIcon.png</string>
       </array>
   <key>LSItemContentTypes</key>
       <array>
           <string>com.example.myformat</string>
       </array>
   <key>LSHandlerRank</key>
   <string>Owner</string>
</dict>

Answer 3

awk '{sub(/10<\/stringProp>/,"5</stringProp>")}1' file

<ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="TG1" enabled="true">
    <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
    </elementProp>
    <stringProp name="ThreadGroup.num_threads">5</stringProp>
  </ThreadGroup>
<ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="TG2" enabled="true">
    <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
    </elementProp>
    <stringProp name="ThreadGroup.num_threads">50</stringProp>
  </ThreadGroup>

如何使用sed，awk或者理想的xmlstartlet替换基于XML文件中元素名称的值

3 个答案: