LOGIN(8) LOGIN(8)
NAME
login - sign on
SYNOPSIS
/etc/login name
/etc/login -f name
/etc/login -p passwd-line
DESCRIPTION
Login is executed by getty(8). See `How to Get Started' for
how to dial up initially.
Login asks for a password if appropriate. Echoing is turned
off during the typing of the password. The -f option forces
login of the named user, without a password. -p is similar
to -f but uses the supplied line of the password file
instead of the appropriate one in /etc/passwd. Both of these
options will demand a typed password if the named user is
the super-user.
After a successful login, accounting files are updated, the
message of the day is printed, and the user is informed of
the existence of mail. Login initializes the user and group
IDs and the working directory, then executes a command
interpreter (usually sh(1)) according to specifications
found in /etc/passwd. Argument 0 of the command interpreter
is the name of the command interpreter with a leading dash
(`-') prepended.
Login also initializes the environment with information
specifying home directory, search path, and an indication of
the source of the login if appropriate.
Only the super-user may execute login.
FILES
/etc/utmp accounting
/usr/adm/wtmp accounting
/usr/spool/mail/* mail
/etc/motd message-of-the-day
/etc/passwd password file
SEE ALSO
init(8), newgrp(1), getty(8), su(8), passwd(1)
DIAGNOSTICS
`Login incorrect,' if the name or the password is bad.
`No Shell', `cannot open password file', `no directory':
seek knowledgeable assistance.