Execute the bash command on the Jenkins pipeline.

Problem

A groovy script (for a jenkins pipeline) might look like this: Is there a way to run a bash command rather than a sh command?

The following are some of the things I’ve tried:

Inside the sh call, type “#!/bin/bash”:

stage('Setting the variables values') {
    steps {
         sh '''
            #!/bin/bash
            echo "hello world"
         '''
    }
}

Substitute a bash command for the sh command:

stage('Setting the variables values') {
    steps {
         bash '''
            #!/bin/bash
            echo "hello world"
         '''
    }
}

Additional Info:

My command is a little more involved than an echo hello world.

Asked by Yago Azedias

Solution #1

In the final script, the Groovy script you provided formats the first line as a blank line. The shebang, which instructs the script to use /bin/bash rather than /bin/sh, must appear on the first line of the file or else it will be ignored.

As a result, you should format your Groovy as follows:

stage('Setting the variables values') {
    steps {
         sh '''#!/bin/bash
                 echo "hello world" 
         '''
    }
}

And /bin/bash will be used to run it.

Answered by Jake

Solution #2

You should be able to do it as follows, according to this document:

node {
    sh "#!/bin/bash \n" + 
       "echo \"Hello from \$SHELL\""
}

Answered by Jacob

Solution #3

I would create a new bash script file (beginning with #!/bin/bash) for multi-line shell scripts or ones that are run several times, and just run it with sh from Jenkinsfile:

sh 'chmod +x ./script.sh'
sh './script.sh'

Answered by mirekphd

Solution #4

I’m confident that the aforementioned responses are correct. However, because my bash lines were closer to 100, it was tough for me to include the double quotes. As a result, I found the following method to be helpful. (To summarize, there should be no double quotes around each line of the shell.)

I also received the java.lang problem when I had “bash “‘#!/bin/bash” within steps. NoSuchMethodError: There is no such DSL method ‘**bash**’ among the steps.

pipeline {
    agent none

    stages {

        stage ('Hello') {
            agent any

            steps {
                echo 'Hello, '

                sh '''#!/bin/bash

                    echo "Hello from bash"
                    echo "Who I'm $SHELL"
                '''
            }
        }
    }
}

As a result of the preceding procedure,

Answered by Santosh Kumar Arjunan

Solution #5

If you wish to change your default shell for all Jenkins projects to bash, you can do so via the web interface in the Jenkins config:

Manage Jenkins > System Configuration (You can skip this step by visiting to https://YOUR JENKINS URL/configure.)

Click ‘Save’ after filling up the ‘Shell executable’ field with the value /bin/bash.

Answered by JellicleCat

Post is based on https://stackoverflow.com/questions/44330148/run-bash-command-on-jenkins-pipeline