EchoStdErrIfError is an STDERR wrapper and returns 0(zero) or 1.

Execute is the main function of `cmd` package.

FAILURE is an alias of exit status code to ease read.

SUCCESS is an alias of exit status code to ease read.

ConfApp is the basic app settings.

ConfUser holds the values read from the config file.

TConfUser defines the data structure to store values from a conf file.