Hi all,
I have a RRD containing some GAUGE data and I can successfully update
and print graphs.
Now I need a graph representing the rate of variation of my data.
I tried, like in cdef tutorial:
....
DEF:pippo=$d/db/temp.rrd:temp:AVERAGE \
CDEF:prec=PREV(pippo) \
CDEF:time=TIME \
CDEF:prectime=PREV(time) \
CDEF:derivate=pippo,prec,-,time,prectime,-,/ \
LINE3:derivate#000077:derivate
but when I execute the script I get:
syntax error near unexpected token `('
` CDEF:prec=PREV(pippo) \'
and I can't understand why.
rrdtool ver 1.2.15 on a Debian Etch
Thank you for your help.
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