logname

return user's login name (POSIX)

Syntax:

logname

Description:

The logname utility writes the user's login name to standard output. If the user doesn't have an entry in the password file, a diagnostic message is written to standard error and logname exits with an exit status greater than zero.

Files:

/etc/passwd

Password file; contains valid userids on the system.

Exit status:

0

Successful completion.

>0

An error occurred.

See also:

• id utility (Return userid)
• who utility (Display who is on the system)