'\"macro stdmacro
.\"
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.TH PMHOSTNAME 1 "PCP" "Performance Co-Pilot"
.SH NAME
\f3pmhostname\f1 \- report hostname
.\" literals use .B or \f3
.\" arguments use .I or \f2
.SH SYNOPSIS
.B $PCP_BINADM_DIR/pmhostname
[\fIhostname\fR]
.SH DESCRIPTION
.B pmhostname
reports the name of the host
.I hostname
as returned by
.BR gethostbyname (3).
.PP
If
.I hostname
is not specified, then the local host name
is retrieved using
.BR gethostname (2)
and this is than passed to
.BR gethostbyname (3).
.PP
.B pmhostname
provides a service for shell scripts that
mimics the logic formerly used by Performance Co-Pilot applications
when trying to determine the official name of a host.
PCP applications no longer use DNS-based heuristics, and therefore
this command is
.IR deprecated .
.PP
If
.BR gethostbyname (3)
fails, the input host name (either
.I hostname
or the result from calling
.BR gethostname (2))
is reported.
.SH PCP ENVIRONMENT
Environment variables with the prefix \fBPCP_\fP are used to parameterize
the file and directory names used by PCP.
On each installation, the
file \fI/etc/pcp.conf\fP contains the local values for these variables.
The \fB$PCP_CONF\fP variable may be used to specify an alternative
configuration file, as described in \fBpcp.conf\fP(5).
.SH SEE ALSO
.BR nslookup (1),
.BR gethostname (2),
.BR gethostbyname (3),
.BR pcp.conf (5),
.BR pcp.env (5)
and
.BR resolver (5).