Do not use the ipmon -a syntax if the ipmon daemon is still running. Normally, the daemon is automatically started during system boot. Issuing the ipmon -a command also opens another copy of ipmon. In such a case, both copies read the same log information, and only one gets a particular log message.
Substitution method is a method of solving a system of equations wherein one of the equations is solved for one variable in terms of the other variables.
of or relating to commutation, exchange, substitution, or interchange. 2. Mathematics. (of a binary operation) having the property that one term operating on a second is equal to the second operating on the first, as a Ã b = b Ã a. having reference to this property: commutative law for multiplication.