如何在 Jenkinsfile 中使用变量运行 shell 命令答案

【问题标题】：How to run shell commands with variables in Jenkinsfile如何在 Jenkinsfile 中使用变量运行 shell 命令
【发布时间】：2020-08-03 05:04:09
【问题描述】：

我想在 Jenkins 文件中作为管道在多个服务器上运行以下命令以获取报告我是 Jenkins 新手，想知道如何编写 Jenkins 文件

Shell 命令：主机名=$（主机名） DATE=$(日期 "+%d-%m-%y %H:%M:%S") CPUUSAGE=$(top -b -n 1 -d1 | grep "Cpu(s)" |awk '{print $2}' | awk -F.'{print $1}') MEMUSAGE=$(free |grep Mem |awk '{print $3/$2 * 100.0}')

我尝试过的：

pipeline {  
agent {label 'server1,server2'}
     environment {
        def CPUUSAGE=0;
        def MEMUSAGE=0;
        
    }
    stages {
    stage('Check System Usage') {
        steps {
            script {
                 CPUUSAGE = sh '''"top -bn1 | grep load | awk '{printf "%.2f%%\t\t\n", $(NF-2)}'", returnStdout: true).trim()'''
                 MEMUSAGE = sh '''"free -m | awk 'NR==2{printf "%.2f%%\t\t", $3*100/$2 }'", returnStdout: true).trim()'''
                 END { printf( "\n" ); }'", returnStdout: true).trim()'''
                 println("CPUUSAGE = ${CPUUSAGE}","MEMUSAGE = ${MEMUSAGE}")
            }
        }
    }
}

请帮忙谢谢萨玛

【问题讨论】：

标签： shell jenkins jenkins-pipeline sh jenkins-groovy

【解决方案1】：

pipeline {  
  agent {label 'server1,server2'}
  environment {
    def CPUUSAGE=0;
    def MEMUSAGE=0;
  }
  stages {
    stage('Check System Usage') {
      steps {
        script {
          def  CPUUSAGE_SCRIPT = '''
            top -bn1 | grep load | awk '{printf "%.2f%%\t\t\n", $(NF-2)}'
          '''

          def MEMUSAGE_SCRIPT = '''
            free -m | awk 'NR==2 {printf "%.2f%%\t\t", $3*100/$2} END {printf "\n"}'
          '''
          CPUUSAGE = sh(script: CPUUSAGE_SCRIPT, returnStdout: true).trim()
          MEMUSAGE = sh(script: MEMUSAGE_SCRIPT, returnStdout: true).trim()

          println("CPUUSAGE = ${CPUUSAGE}, MEMUSAGE = ${MEMUSAGE}")
        }
      }
    }
  }
}

【讨论】：

你好勇我遇到错误，试图在 " 之前添加 \ 但它没有帮助 top -bn1 | grep load | awk '{printf \"%.2f%%\t\t\n ", $(NF-2)}' + top -bn1 + grep load + awk '{printf "%.2f%% ", $(NF-2)} END {printf " "}' awk: cmd. line: 1: {printf"%.2f%% awk: cmd. line:1: ^ 未终止的字符串 awk: cmd. line:1: {printf "%.2f%% awk: cmd.line:1: ^ 语法错误任何建议

【解决方案2】：

检查这个：

pipeline {  
agent any
     environment {
        CPUUSAGE = sh(script: 'top -bn1 | grep load', returnStdout: true).trim()
        MEMUSAGE = sh(script: 'free -m', returnStdout: true).trim()
    }
    stages {
        stage('Check System Usage') {
            steps {
                echo "CPUUSAGE = $CPUUSAGE"
                echo "MEMUSAGE = $MEMUSAGE"
            }
        }
    }
}

但是您需要检查您的完整脚本。这些简短的脚本对我有用。

【讨论】：