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OpenSolaris 2009.06 - man page for logname (opensolaris section 1)

logname(1)							   User Commands							logname(1)

NAME
logname - return user's login name
SYNOPSIS
logname
DESCRIPTION
The logname utility will write the user's login name to standard output. The login name is the string that would be returned by the getlo- gin(3C) function. Under the conditions where getlogin() would fail, logname will write a diagnostic message to standard error and exit with a non-zero exit status.
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of logname: LANG, LC_ALL, LC_CTYPE, LC_MESSAGES, and NLSPATH.
EXIT STATUS
The following error values are returned: 0 Successful completion. >0 An error occurred.
FILES
/etc/profile environment for user at login time /var/adm/utmpx user and accounting information
ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWesu | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+
SEE ALSO
env(1), login(1), getlogin(3C), utmpx(4), attributes(5), environ(5), standards(5) SunOS 5.11 3 Nov 2000 logname(1)