break in process

[DBSMITH]

I have an application system command that is like tail -f in UNIX and I 
want to say

x=1
while x < 10
do
        'command'  append to log
        print "\n" append to log
        issue HANGUP or KILL SIGNAL
        x+=1
done

How do I issue a hangup signal to this process?

thanks

Derek B. Smith
OhioHealth IT
UNIX / TSM / EDM Teams