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slightly improved --timefmt documentation

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Dima Kogan 2013-09-20 23:13:55 -07:00
parent 809442e2dc
commit fad78b60b0
1 changed files with 15 additions and 2 deletions
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@ -1023,8 +1023,8 @@ C<--timefmt>. This option takes a single argument: the format to use to parse
the data. The format is documented in 'set timefmt' in gnuplot, although the
common flags that L<strftime> understands are generally supported. The backslash
sequences in the format are I<not> supported, so if you want a tab, put in a tab
instead of \t. When this flag is given, some other options act a little bit
differently:
instead of \t. Whitespace in the format I<is> supported. When this flag is
given, some other options act a little bit differently:
=over
@ -1038,6 +1038,19 @@ C<--xmin> and C<--xmax> I<must> use the format passed in to C<--timefmt>
=back
Using this option changes both the way the input is parsed I<and> the way the
x-axis tics are labelled. Gnuplot tries to be intelligent in this labelling, but
it doesn't always to what the user wants. The labelling can be controlled with
the gnuplot C<set format> command, which takes the same type of format string as
C<--timefmt>. Example:
$ sar 1 -1 |
awk '$1 ~ /..:..:../ && $8 ~/^[0-9\.]*$/ {print $1,$8; fflush()}' |
feedgnuplot --stream --domain
--lines --timefmt '%H:%M:%S'
--extracmds 'set format x "%H:%M:%S"'
This plots the 'idle' CPU consumption against time.
=head2 Real-time streaming data