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| Chapter 2 UNIX Commands |

## login

    login [options]

Sign on and identify yourself to the system. At the beginning of each terminal session, the system prompts you for your username and, if relevant, a password. The options are usually not used.

### Options

`user`

  Sign on as `user` (instead of being prompted).

-d`tty`

  Specify the pathname of the `tty` that serves as the login port.

`var`=`value`

  When specified after the username, assign a `value` to one or more environment variables. PATH and SHELL can't be changed.)

Reference: ln |  | Reference: logname