Before reading on, here is the most important command you'll ever need when using Subversion: svn help. The Subversion command-line client is self-documenting—at any time, a quick svn help SUBCOMMAND will describe the syntax, options, and behavior of the subcommand.

$ svn help import
import: Commit an unversioned file or tree into the repository.
usage: import [PATH] URL

  Recursively commit a copy of PATH to URL.
  If PATH is omitted '.' is assumed.
  Parent directories are created as necessary in the repository.
  If PATH is a directory, the contents of the directory are added
  directly under URL.

Valid options:
  -q [--quiet]             : print as little as possible
  -N [--non-recursive]     : operate on single directory only