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 getlogin(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:

See Also

env(1), login(1), getlogin(3C), utmpx(4), attributes(5), environ(5), standards(5)