NAME

logname − Displays user login name

SYNOPSIS

logname

STANDARDS

Interfaces documented on this reference page conform to industry standards as follows:

logname:  XPG4, XPG4−UNIX

Refer to the standards(5) reference page for more information about industry standards and associated tags. 

FLAGS

None

PARAMETERS

None

DESCRIPTION

The logname command writes to standard output the name you used to log into the system. 

ENVIRONMENT VARIABLES

The following environment variables affect the execution of ∗cmd∗:

LANGProvides a default value for the internationalization variables that are unset or null. If LANG is unset or null, the corresponding value from the default locale is used. If any of the internationalization variables contain an invalid setting, the utility behaves as if none of the variables had been defined. 

LC_ALLIf set to a non-empty string value, overrides the values of all the other internationalization variables. 

LC_CTYPEDetermines the locale for the interpretation of sequences of bytes of text data as characters (for example, single-byte as opposed to multibyte characters in arguments). 

LC_MESSAGESDetermines the locale for the format and contents of diagnostic messages written to standard error. 

NLSPATHDetermines the location of message catalogues for the processing of LC_MESSAGES. 

NOTES

The logname command explicitly ignores the LOGNAME environment variable to avoid erroneous resluts from environment changes. 

EXIT VALUES

The following exit values are returned:

0Successful completion

>0The getlogin() utility would fail.

RELATED INFORMATION

Commands:  id(1), env(1)/printenv(1), login(1), who(1)

Functions:  getlogin(2)

Standards:  standards(5)