Iterate jenkins slaves and kill them
Uncomment the last three lines if you wanna delete the agents:
for (aSlave in hudson.model.Hudson.instance.slaves) {
println('====================');
println('Name: ' + aSlave.name);
println('getLabelString: ' + aSlave.getLabelString());
println('getNumExectutors: ' + aSlave.getNumExecutors());
println('getRemoteFS: ' + aSlave.getRemoteFS());
println('getMode: ' + aSlave.getMode());
println('getRootPath: ' + aSlave.getRootPath());
println('getDescriptor: ' + aSlave.getDescriptor());
println('getComputer: ' + aSlave.getComputer());
println('computer.isAcceptingTasks: ' + aSlave.getComputer().isAcceptingTasks());
println('computer.isLaunchSupported: ' + aSlave.getComputer().isLaunchSupported());
println('computer.getConnectTime: ' + aSlave.getComputer().getConnectTime());
println('computer.getDemandStartMilliseconds: ' + aSlave.getComputer().getDemandStartMilliseconds());
println('computer.isOffline: ' + aSlave.getComputer().isOffline());
println('computer.countBusy: ' + aSlave.getComputer().countBusy());
println('computer.getLog: ' + aSlave.getComputer().getLog());
println('computer.getBuilds: ' + aSlave.getComputer().getBuilds());
//println('Shutting down node!!!!');
//aSlave.getComputer().setTemporarilyOffline(true,null);
//aSlave.getComputer().doDoDelete();
}