June 9, 1993 LOGNAME 1

### NAME

logname - display user's login name

### SYNOPSIS

logname

### DESCRIPTION

The logname utility writes the user's login name to standard output followed 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 ALSO

who(1), whoami(1), getlogin(2)

### STANDARDS

The logname utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'') .

### HISTORY

The logname command appeared in 4.4BSD.