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logname(1) General Commands Manual logname(1) NAME logname - Displays user login name SYNOPSIS logname STANDARDS Interfaces documented on this reference page conform to industry stan- dards as follows: logname: XPG4, XPG4-UNIX Refer to the standards(5) reference page for more information about in- dustry standards and associated tags. OPTIONS None OPERANDS None DESCRIPTION The logname command writes to standard output the name you used to log into the system. NOTES The logname command explicitly ignores the LOGNAME environment variable to avoid erroneous results from environment changes. EXIT STATUS The following exit values are returned: Successful completion. The getlogin() utility would fail. ENVIRONMENT VARIABLES The following environment variables affect the execution of *cmd*: Pro- vides 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 vari- ables contain an invalid setting, the utility behaves as if none of the variables had been defined. If set to a non-empty string value, over- rides the values of all the other internationalization variables. De- termines the locale for the interpretation of sequences of bytes of text data as characters (for example, single-byte as opposed to multi- byte characters in arguments). Determines the locale for the format and contents of diagnostic messages written to standard error. Deter- mines the location of message catalogues for the processing of LC_MES- SAGES. SEE ALSO Commands: id(1), env(1), login(1), who(1) Functions: getlogin(2) Standards: standards(5) logname(1)