The Bulk API doesn't provide a login operation, so you must use SOAP API to log in. Create a text file called login.txt containing the following text: 01 <? xml version = "1.0" encoding = "utf-8" ?> 02 < env:Envelope xmlns:xsd = " http://www.w3.org/2001/XMLSchema " 03 xmlns:xsi = " http://www.w3.org/2001/XMLSchema-instance " 04 xmlns:env = " http://schemas.xmlsoap.org/soap/envelope/ " > 05 < env:Body > 06 < n1:login xmlns:n1 = "urn: partner.soap.sforce.com " > 07 < n1:username >your_username</ n1:username > 08 < n1:password >your_password</ n1:password > 09 </ n1:login > 10 </ env:Body > 11 </ env:Envelope > Replace your_username and your_password with your Salesforce user name and password. Using a command-line window, execute the following cURL command: 1 curl https://login.salesforce.com/services/So...