Use: steam -command <command> [parameters] [flags]

Commands:
create: Create a Steam Account
parameters:
-username <username> - Username of Steam account
(case-insensitive)
-email <email> - Email address
-password <password> - Password for the account
(case-sensitive)
-question <question> - Password reminder question
-answer <answer> - Password reminder secret answer
(case-sensitive)

For example: steam -command create -username foobar -email
foo@bar.com -password pasSwoRd -question "cat's name?" -answer Gordo

update: Install or update HLDS
parameters:
-game <game> - Mod name: cstrike, tfc, dod, dmc,
valve, or ricochet
-dir <installdir> - HLDS Install dir
-username <username> - Steam username
-password <password> - Password
(if username, password, or dir not specified, will use value from
last run of tool)
flags:
-remember_password - Remember Steam password so is not
needed next time
-verify_all - Verify all HLDS files are up to date

For example: steam -command update -game cstrike -dir /hlds -username
foo@bar.com -password pasSwoRd -remember_password

version: View installed versions