Oracle RMAN: how to change the logging levele to normal debug level logging for trace file

Hi All ;

I have log directory that creates a huge trace files, I don't have avoracle.cmd in /opt/AVMRclnt/var

root@livedb11:/# ls -ltrh /u01/app/oracle/diag/rdbms/pkimgn/pkimg/trace

total 3626810

-rw-r--r-- 1 oracle oinstall 6.8M Mar 29 2017 alert_pkimg.log.hist

-rw-r--r-- 1 oracle oinstall 85K Apr 4 2017 alert_pkimg.error

-rw-r--r-- 1 oracle oinstall 0 Feb 28 2020 offi.lst

-rw-r----- 1 oracle oinstall 5.6K Oct 27 23:15 pkimg_ora_21039.trc

-rw-r----- 1 oracle oinstall 2.4K Oct 27 23:15 pkimg_ora_21039.trm

-rw-r----- 1 oracle oinstall 101 Oct 28 09:18 pkimg_ora_4881.trm

-rw-r----- 1 oracle oinstall 1.3K Oct 28 09:18 pkimg_ora_4881.trc

-rw-r----- 1 oracle oinstall 22M Oct 28 20:31 pkimg_ora_26482.trm.gz

-rw-r----- 1 oracle oinstall 43M Oct 28 20:31 pkimg_ora_26482.trc.gz

-rw-r----- 1 oracle oinstall 22M Oct 28 20:31 pkimg_ora_26483.trm.gz

-rw-r----- 1 oracle oinstall 43M Oct 28 20:31 pkimg_ora_26483.trc.gz

-rw-r----- 1 oracle oinstall 22M Oct 28 20:31 pkimg_ora_26484.trm.gz

-rw-r----- 1 oracle oinstall 43M Oct 28 20:31 pkimg_ora_26484.trc.gz

-rw-r----- 1 oracle oinstall 22M Oct 28 20:31 pkimg_ora_26491.trm.gz

-rw-r----- 1 oracle oinstall 43M Oct 28 20:31 pkimg_ora_26491.trc.gz

How can I change the logging level to normal? Thank you.