Bash 如何使用sed、awk或xmlet替换基于XML文件中元素名称的值

我试图将值10替换为值5，其中testname=“TG1”

更改此项：

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

10

为此：

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

5

片段示例

之前：

<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>

持续
10
持续
50

之后：

<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>

持续
5.
持续
50

尝试此awk命令：

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

awk'$0~“testclass=\'ThreadGroup\'&&&$0~”testname=\'TG1\'{replace=1}
$0~“testclass=\'ThreadGroup\'&&&$0！~testname=\“TG1\”“{replace=0}
替换{gsub（“name=\”ThreadGroup.num\u threads\”>10“，
.txt中的“name=\”ThreadGroup.num\u threads\>5“，$0）}1”

---

它将用

name=“ThreadGroup.num\u线程”>5替换所有
name=“ThreadGroup.num\u线程”>10个
，如果它们在
内，那么假设您实际拥有有效的XML，这确实是一个xpath问题：

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

要将文件保存到位，请将
ed
更改为
ed--inplace
awk'{sub（/10/，“5”）}1'文件
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>

持续
5.
持续
50