var host = "your-host.com"
var username = "user"
var password = "pass"
var session = NMSSHSession(host: host, andUsername: username)

session.connect()

if session.connected == true {
    session.authenticateByPassword(password)
    if session.authorized == true {
        NSLog("Authentication succeeded")
    }

    var error = NSErrorPointer()
    var response = session.channel.execute("ls", error: error)

    NSLog("List of my files %@", response)
}

session.disconnect()

do {
    let host = "example.com"
    let username = "user"
    let password = "pass"
    let session = NMSSHSession(host: host, andUsername: username)

    session?.connect()
    if session?.isConnected ?? false {
        session?.authenticate(byPassword: password)
        if session?.isAuthorized ?? false {
            print("Authentication succeeded")
        }
        let response = try session?.channel.execute("ls")
        print("List of my files %@", response)
    }
    session?.disconnect()
} catch {
    print(error)
}