Running shell commands in Jenkins with sudo

gistfile1.groovy

// Use unbuffer to avoid sudo complaining about no tty requirement
def cmd = ["/bin/bash", "-c", "unbuffer sudo service sshd status"]
def proc = cmd.execute()
def outputStream = new StringBuffer()
def errStream = new StringBuffer()
proc.waitForProcessOutput(outputStream, errStream)
println(outputStream.toString())
println(errStream.toString())