LOGNAME(1) BSD General Commands Manual LOGNAME(1)NAMElogname — display user's login name
The logname utility writes the user's login name to standard output fol‐
lowed by a newline.
The logname utility explicitly ignores the LOGNAME and USER environment
variables because the environment cannot be trusted.
The logname utility exits 0 on success, and >0 if an error occurs.
SEE ALSOwho(1), whoami(1), getlogin(2)STANDARDS
The logname utility conforms to IEEE Std 1003.2-1992 (“POSIX.2”).
The logname command appeared in 4.4BSD.
4.4BSD June 9, 1993 4.4BSD