- ‘-h’
-
- ‘--help’
-
Prints a short summary on the meaning of each program option. Aborts
further program execution.
- ‘-v’
-
- ‘--version’
-
Prints out the current version number.
- ‘-d’
-
- ‘--debug’
-
Enables the debugging option. This produces verbose diagnostics to
“standard error” when
gperf is executing. It is useful both for
maintaining the program and for determining whether a given set of
options is actually speeding up the search for a solution. Some useful
information is dumped at the end of the program when the ‘-d’
option is enabled.