The "bad substitution" error in a Jenkins pipeline script typically occurs when you are using an unsupported or incorrect syntax for a shell variable expansion.

Jenkins provides two ways to create pipelines: Scripted Pipeline and Declarative Pipeline.

To add a timeout step in a Jenkins pipeline, you can use the timeout block provided by the Pipeline Utility Steps plugin.

In Jenkins Pipeline, you can use conditional stages or steps to control the flow of your pipeline based on specific conditions.

To wipe out a Jenkins pipeline workspace, you can use the deleteDir() function provided by the Pipeline Utility Steps plugin. This function deletes the entire workspace directory, including all files and subdirectories.

In Jenkins, an agent and a node are similar concepts, but they are not exactly the same thing. In Jenkins, an agent and a node are similar concepts, but they are not exactly the same thing. An agent is a term used in the context of the Jenkins pipeline. It refers to a machine

We can restart the Jenkins manually with the "Safe restart" Option.