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.\"
.IX Title "RRDFIRST 1"
.TH RRDFIRST 1 "2019-05-30" "1.7.1" "rrdtool"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
rrdfirst \- Return the date of the first data sample in an RRA within an RRD
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
\&\fBrrdtool\fR \fBfirst\fR \fIfilename\fR [\fB\-\-rraindex\fR \fInumber\fR] [\fB\-\-daemon\fR|\fB\-d\fR \fIaddress\fR]
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The \fBfirst\fR function returns the \s-1UNIX\s0 timestamp of the first data
sample entered into the specified \s-1RRA\s0 of the \s-1RRD\s0 file.
.IP "\fIfilename\fR" 8
.IX Item "filename"
The name of the \fB\s-1RRD\s0\fR that contains the data.
.IP "\fB\-\-rraindex\fR \fInumber\fR" 8
.IX Item "--rraindex number"
The index number of the \fB\s-1RRA\s0\fR that is to be examined. If not specified, the
index defaults to zero. \fB\s-1RRA\s0\fR index numbers can be determined through
\&\fBrrdtool info\fR.
.IP "\fB\-\-daemon\fR|\fB\-d\fR \fIaddress\fR" 8
.IX Item "--daemon|-d address"
Address of the rrdcached daemon.  For a list of accepted formats, see
the \fB\-l\fR option in the rrdcached manual.
.Sp
.Vb 1
\& rrdtool first \-\-daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd
.Ve
.SH "AUTHOR"
.IX Header "AUTHOR"
Burton Strauss <Burton@ntopSupport.com>
Daemon support added by Steve Shipway <steve@steveshipway.org>