X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=doc%2Fcdeftutorial.pod;h=fe580634e25032e1dc085c6c1407bebb9f5c9975;hp=19070aecaa35a3e98bd95c6982a0bd58e9639847;hb=0fe03275068c0e55d01a7cc2308fa12fdee569cf;hpb=3a4825306f808c36fb2c529f27c5457a0715dfaf

diff --git a/doc/cdeftutorial.pod b/doc/cdeftutorial.pod
index 19070ae..fe58063 100644
--- a/doc/cdeftutorial.pod
+++ b/doc/cdeftutorial.pod
@@ -725,7 +725,7 @@ If you do so, you won't be able to use these next GPRINTs:
 
 =head2 Degrees Celcius vs. Degrees Fahrenheit
 
-   rrdtool graph demo.gif --title="Demo Graph" \
+   rrdtool graph demo.png --title="Demo Graph" \
       DEF:cel=demo.rrd:exhaust:AVERAGE \
       CDEF:far=cel,32,-,0.55555,* \
       LINE2:cel#00a000:"D. Celsius" \
@@ -750,7 +750,7 @@ enough for this purpose and it saves a calculation.
 
 =head2 Changing unknown into zero
 
-   rrdtool graph demo.gif --title="Demo Graph" \
+   rrdtool graph demo.png --title="Demo Graph" \
       DEF:idat1=interface1.rrd:ds0:AVERAGE \
       DEF:idat2=interface2.rrd:ds0:AVERAGE \
       DEF:odat1=interface1.rrd:ds1:AVERAGE \