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47 .TH LOGNAME 1 "Aug 11, 2009"
49 logname \- return user's login name
53 \fB/usr/bin/logname\fR
61 .SS "/usr/bin/logname"
64 The \fBlogname\fR utility writes the user's login name to standard output. The
65 login name is the string that would be returned by the \fBgetlogin\fR(3C)
66 function. Under the conditions where \fBgetlogin()\fR would fail, \fBlogname\fR
67 will write a diagnostic message to standard error and exit with a non-zero exit
72 The \fBlogname\fR utility writes the user's login name to standard output. The
73 login name is the string that would be returned by the \fBgetlogin\fR(3C)
74 function. If \fBgetlogin()\fR does not return successfully, the name
75 corresponding to the real user IDof the calling process is used instead.
76 .SH ENVIRONMENT VARIABLES
79 See \fBenviron\fR(5) for descriptions of the following environment variables
80 that affect the execution of \fBlogname\fR: \fBLANG\fR, \fBLC_ALL\fR,
81 \fBLC_CTYPE\fR, \fBLC_MESSAGES\fR, and \fBNLSPATH\fR.
85 The following error values are returned:
92 Successful completion.
108 \fB\fB/etc/profile\fR\fR
111 environment for user at login time
117 \fB\fB/var/adm/utmpx\fR\fR
120 user and accounting information
126 See \fBattributes\fR(5) for descriptions of the following attributes:
134 ATTRIBUTE TYPE ATTRIBUTE VALUE
136 Interface Stability Committed
138 Standard See \fBstandards\fR(5).
144 \fBenv\fR(1), \fBlogin\fR(1), \fBgetlogin\fR(3C), \fButmpx\fR(4),
145 \fBattributes\fR(5), \fBenviron\fR(5), \fBstandards\fR(5)