.\"get the size of a file
.TH file_size 3

.SH NAME
file_size() - get the size of a file

.SH SYNOPSIS
int file_size( string file );

.SH DESCRIPTION
file_size() returns the size of file <file> in bytes.  Size -1
indicates that <file> either does not exist, or that it is not
readable by you. Size -2 indicates that <file> is a directory.