获取 sed: -e expression #1, char 41: unterminated `s' command

Question

我正在运行 shell 脚本来更新 pom 版本，但出现以下错误。

sed：-e 表达式 #1，字符 41：未终止的 `s' 命令

Shell 脚本

#!/bin/sh            
tag=$(grep '<version>' $2 | sed 's/<version>[^-]*-\(.*\)<\/version>/\1/')
sed -i "s/<version>.*<\/version>/<version>$1-${tag}<\/version>/" $2

Pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
        <groupId>org.acumos.onboarding</groupId>
        <artifactId>onboarding-app</artifactId>
        <version>4.0.0-</version>
        <name>Onboarding app for public use</name>
        <parent>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-parent</artifactId>
                <version>4.0.0-</version>
                <relativePath />
        </parent>

这里我期待的是 4.0.2 而不是 4.0.0

我将脚本运行为 ./script.sh <version_name> pom.xml

新 pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
        <groupId>org.acumos.onboarding</groupId>
        <artifactId>onboarding-app-open</artifactId>
        <version>4.0.0-</version>
        <name>Onboarding app for public use</name>
        <parent>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-parent</artifactId>
                <version>4.0.0-</version>
                <relativePath />
        </parent>

</project>

我的 output

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
        <groupId>org.acumos.onboarding</groupId>
        <artifactId>onboarding-app-open</artifactId>
        <version>4.0.0-</version>
        <name>Onboarding app for public use</name>
        <parent>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-parent</artifactId>
                <version>4.0.0-</version>
                <relativePath />
    </parent>

</project>

脚本运行方法./script.sh 3.0 pom.xml

Answer 1

对于awk ，您能否尝试仅使用所示样本进行以下、编写和测试。

awk '
match($0,/.*<version>([0-9]+\.){1,}[0-9]+-<\/version>/) && ++count==1{
  val=substr($0,RSTART,RLENGTH)
  sub(/\.0/,".2",val)
  print val
  next
}
1
'  Input_file

说明：为上述添加详细说明。

awk '                            ##Starting awk program from here.
match($0,/.*<version>([0-9]+\.){1,}[0-9]+-<\/version>/) && ++count==1{  ##Using match function to match regex of <version> digits dot(1 or more occurrences) followed by digits - </version> and making sure its happening only 1 time.
  val=substr($0,RSTART,RLENGTH)  ##Creating val which is sub string of matched regex above.
  sub(/\.0/,".2",val)            ##Substituting .0 with .2 in val to get exact version asked by OP.
  print val                      ##Printing val here.
  next                           ##next will skip all statements from here.
}
1                                ##1 will print edited/non-edited lines here.
' Input_file                     ##Mentioning Input_file name here.

注意：上面将打印结果，一旦您对终端上显示的结果感到满意，然后 append > temp && mv temp Input_file Input_file 到上述代码以将 output 保存到 Input_file 本身。

---

---

要在 bash 脚本中运行它，请尝试以下操作。

#!/bin/bash

awk -v ver="$1" '
match($0,/.*<version>([0-9]+\.){1,}[0-9]+-<\/version>/) && ++count==1{
  val=substr($0,RSTART,RLENGTH)
  sub(/\.0/,".2",val)
  print val
  next
}
1
' "$2"

现在按如下方式运行它（不要忘记赋予脚本执行权限）。

./script.bash "3.0" "your_file"