the raw numerics involved in a /whois I believe are as follows:
Raw Numerics: 276, 301, 307, 310, 311, 312, 313, 317, 318, 319, 320, 330, 335, 378, 379 and 671

The following snippet will echo the results to your active screen. Modify how you like.

raw 276:: { echo -a ¤Client Cert Fingerprint: $7 | halt }
raw 301:: {
echo -a $smb ¤ $+ $2 is Away. Reason Stated: $3- $+
else { echo -a $smb $2 is Away. $sv(Reason,$3-) }
halt
}
raw 307:: { echo -a $smb ¤User Is A Registered Nick | halt }
raw 310:: { echo -a ¤Helpful: $2 is available for help. | halt }
raw 311:: {
set -u1 %x 1
echo -a ¤WhoIs
echo -a ¤Nick: $2
echo -a ¤IdentD: $3
echo -a ¤Real Name: $6-
echo -a ¤Address: $+($2,!,$3,@,$4)
halt
}
raw 312:: {
echo -a ¤Server Name: $3
echo -a ¤Server Info: $remove($4-,$chr(58))
halt
}
raw 313:: { echo -a ¤IRC Status: $5- | halt }
raw 317:: {
echo -a ¤Has Been Signed On For: $replace($duration($calc($ctime - $4)),wk, Week,min, Minute,sec, Secound,day, Day,hr, Hour)
echo -a ¤Has Been Idle For: $replace($duration($3),wk, Week,min, Minute,sec, Secound,day, Day,hr, Hour)
halt
}
raw 318:: { echo -a /End Of WhoIs | halt }
raw 319:: { echo -a Channels: $+ $replace($3-,~,~,&,&,@,@,%,%,+,+) | halt }
raw 320:: { echo -a ¤IRC Admin Info: $3- | halt }
raw 330:: { echo -a ¤Logged In As: $3 | halt }
raw 335:: { echo -a ¤User Is A Bot | halt }
raw 378:: { echo -a ¤Host: $6 ¤IP: $7 | halt }
raw 379:: { echo -a ¤User Modes: $6- | halt }
raw 671:: { echo -a ¤Client Is Using A Secure Connection | halt }

Place the line:

raw *:*: echo -s ( $+ $numeric $+ ) $1-

above all the raw lines in the script and make the whois. You will see the numeric number associated to that raw. The raw number for logging is: 330

You could try adding this

raw 330:*:{ msg #soundops $2-  }

if your just checking if a nick is registered or not or the status of identification i would use /ns status
then you can use notice events instead of raws.and collecting a bunch of unnecessary information