AddShutdownListener adds fn as a shutdown listener.

AddWrapUpListener adds fn as a wrap up listener.

Env returns the value of the given environment variable.

EnvInt returns an int value of the given environment variable.

Pid returns pid of current process.

ProcessName returns the processname, same as the command name.

SetTimeToForceQuit sets the waiting time before force quitting.

StartProfile starts a new profiling session.

DefaultMemProfileRate is the default memory profiling rate.

Profile represents an active profiling session.