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.
b. an equivalent change in an expression or equation resulting from the substitution of one set of variables by another. 4. (General Physics) physics a change in an atomic nucleus to a different nuclide as the result of the emission of either an alpha-particle or a beta-particle.