No control over debugging

Currently debugging can only be enabled or disabled. There is no additional control over debugging like the level.

Pass two or three arguments to the debugging function

1. Minimum debug level
2. Maximum debug level
3. Debug message

1 and 2 above need more thought and one of these may be removed.

Debug function will check these arguments against externally supplied parameter by the user's command, and output only if eligible.

Add value to the debug parameter (-d). This value will be desired debug level. Propose the following five levels:

1. 0: Force quiet
2. 1: Error only
3. 2: Warning and exit status (default)
4. 3: Summary info on various stages of the scripts
5. 4: Verbose

changed milestone to %v01.02.00

This is related to #5

mentioned in issue #5

Since this changes the debug argument from being a switch to a param-value pair, this will break compatibility with previous versions. So it will be carried out at the next major version release.

changed milestone to %v02.00.00

added Stage_Proposal label

added Severity_Minor label

added Category_Core label

marked this issue as related to #5

Each debug message carries a weight, based on the list above.

If the debug level of the message is less than the requested debug level, then the message is displayed, else suppressed.