[rrd-users] Re: %lf

[Alex van den Bogaerdt]

David Gabler wrote:

> %lf in its bare form gives me a number such as 300.000000.  What is the
> best way to round the .000000 off. as to not get ANY precision OR 1
> place of precision?

The format is <total number of characters>.<digits after decimal point>

So: %3.0lf should give you "300", %5.1 should give you "300.0".
There are a few examples in the tutorial.
Note that the decimal point is also counted:

%6.2lf prints:

  1.23
 12.34
123.45
1234.56
12345.67

> I have been looking through the docs but can not determine the proper
> way.

This is part of the unix documentation.
Windows users could go to google and find it rather easely:

Query for "manual printf" using the "I'm feeling lucky" button
gives a good pointer to start with (click "sprintf" on that page).

cheers,
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