[jenkins] Check if a file exists in jenkins pipeline

I am trying to run a block if a directory exists in my jenkins workspace and the pipeline step "fileExists: Verify file exists" in workspace doesn't seem to work correctly.

I'm using Jenkins v 1.642 and Pipeline v 2.1. and trying to have a condition like

if ( fileExists 'test1' ) {
  //Some block
}

What are the other alternatives I have within the pipeline?

This question is related to jenkins jenkins-pipeline

The answer is

You need to use brackets when using the fileExists step in an if condition or assign the returned value to a variable

Using variable:

def exists = fileExists 'file'

if (exists) {
    echo 'Yes'
} else {
    echo 'No'
}

Using brackets:

if (fileExists('file')) {
    echo 'Yes'
} else {
    echo 'No'
}

Source: Stackoverflow.com

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[jenkins] Check if a file exists in jenkins pipeline

The answer is

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