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1.1 ! root 1: .th LOGIN I 3/15/72 ! 2: .sh NAME ! 3: login \*- sign onto UNIX ! 4: .sh SYNOPSIS ! 5: .bd login ! 6: [ username ] ! 7: .sh DESCRIPTION ! 8: The ! 9: .it login ! 10: command ! 11: is used when a user initially ! 12: signs onto UNIX, or it may be used at any time to change ! 13: from one user to another. ! 14: The latter case is the one summarized above and ! 15: described here. ! 16: See `How to Get Started' for how to dial up initially. ! 17: .s3 ! 18: If ! 19: .it login ! 20: is invoked without an argument, ! 21: it will ask for a user name, and, if ! 22: appropriate, a password. ! 23: Echoing is turned off (if possible) during the typing of the password, ! 24: so it will not appear on the written record of the ! 25: session. ! 26: .s3 ! 27: After a successful login, ! 28: accounting files are updated and ! 29: the user is informed of the ! 30: existence of ! 31: .it mailbox ! 32: and message-of-the-day files. ! 33: .s3 ! 34: Login is recognized by the Shell ! 35: and executed directly (without forking). ! 36: .sh FILES ! 37: /tmp/utmp accounting ! 38: .br ! 39: /tmp/wtmp accounting ! 40: .br ! 41: mailbox mail ! 42: .br ! 43: /etc/motd message-of-the-day ! 44: .br ! 45: /etc/passwd password file ! 46: .sh "SEE ALSO" ! 47: init(VII), getty(VII), mail(I) ! 48: .sh DIAGNOSTICS ! 49: `login incorrect,' ! 50: if the name or the password is bad. ! 51: `No Shell,', `cannot open password file,' `no directory': ! 52: consult a UNIX programming councilor. ! 53: .sh BUGS ! 54: If the first login is unsuccessful, ! 55: it tends to go into a state where it won't accept ! 56: a correct login. ! 57: Hit EOT and try again.
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