.TH SUBNETCALC 1 "OCTOBER 2020" "Version 1.0" "User Manuals" .SH NAME subnetcalc \- calculate the number of address in a subnet .SH SYNOPSIS .B subnetcalc \fR[netmask] [-s] .SH DESCRIPTION .B subnetcalc is a simple subnet calculator. The user provides a subnet to the program, either as a argument or interactivly. The program then calculates the total number of addresses and usable addresses in that subnet. It is also possible to do batch processing with \fB\-s\fR option. .SH OPTIONS .TP .B \-s Makes the program silent and accept input on stdin. In this mode, the program will only calculate the total number of addresses in the given netmask. .SH RETURN VALUES Upon error, 1 is returned. Otherwise, 0 is returned. .SH AUTHOR Jack-Benny Persson .SH "SEE ALSO" .BR bc (1)