Entry in history on AIX (4325149)

It has been noticed that the history file is being filled up with commands being run by the Oracle agent to collect OS metrics. This commands are vmstat and iostat

root@uksupu13(/etc/rc.d/init.d)# history

13982916 echo $$
13982917 echo $?
13982918 echo $$
13982919 vmstat -I 20 1;
13982920 ps -ef | awk '/tnslsnr/ && !/awk/ { for (i=1; i<NF; i++)
{ if (index($i, "tnslsnr")>0) {print $(i+1) } } }'
13982921 echo $?
13982922 echo $?
13982923 echo $$
13982924 echo $?
13982925 vmstat -I 20 1;
13982926 echo $$
13982927 vmstat -I 20 1;
13982928 echo $$
13982929 echo $?
13982930 iostat -Dl 20 1;
13982931 history

How can we stop this