diff --git a/doc/rrdlast.1 b/doc/rrdlast.1
index a79bef28296c4e69d6ca1c284d46f65a25e0c6b9..4607b1365a1507697fd1b16c2772c60d6307edbc 100644 (file)
--- a/doc/rrdlast.1
+++ b/doc/rrdlast.1
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.IX Title "RRDLAST 1"
-.TH RRDLAST 1 "2008-03-15" "1.3rc9" "rrdtool"
+.TH RRDLAST 1 "2013-05-23" "1.4.8" "rrdtool"
+.\" For nroff, turn off justification. Always turn off hyphenation; it makes
+.\" way too many mistakes in technical documents.
+.if n .ad l
+.nh
.SH "NAME"
rrdlast \- Return the date of the last data sample in an RRD
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
\&\fBrrdtool\fR \fBlast\fR \fIfilename\fR
+[\fB\-\-daemon\fR\ \fIaddress\fR]
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The \fBlast\fR function returns the \s-1UNIX\s0 timestamp of the most recent
.IP "\fIfilename\fR" 8
.IX Item "filename"
The name of the \fB\s-1RRD\s0\fR that contains the data.
+.IP "\fB\-\-daemon\fR \fIaddress\fR" 8
+.IX Item "--daemon address"
+Address of the rrdcached daemon. If specified, a \f(CW\*(C`flush\*(C'\fR command is sent
+to the server before reading the \s-1RRD\s0 files. This allows \fBrrdtool\fR to return
+fresh data even if the daemon is configured to cache values for a long time.
+For a list of accepted formats, see the \fB\-l\fR option in the rrdcached manual.
+.Sp
+.Vb 1
+\& rrdtool last \-\-daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd
+.Ve
+.SH "ENVIRONMENT VARIABLES"
+.IX Header "ENVIRONMENT VARIABLES"
+The following environment variables may be used to change the behavior of
+\&\f(CW\*(C`rrdtool\ last\*(C'\fR:
+.IP "\fB\s-1RRDCACHED_ADDRESS\s0\fR" 4
+.IX Item "RRDCACHED_ADDRESS"
+If this environment variable is set it will have the same effect as specifying
+the \f(CW\*(C`\-\-daemon\*(C'\fR option on the command line. If both are present, the command
+line argument takes precedence.
.SH "AUTHOR"
.IX Header "AUTHOR"
Russ Wright <rwwright@home.com>