I added the "use strict;" statement to my script for the first time and
received the following compilation errors:
Global symbol "$LoginName" requires explicit package name at todaysFiles.pl
This error means that "$LoginName was declared without a statement indicating what package it is meant to be part of. It is not a hard question to answer. Simply make sure that before you use a variable in your code, you tell the interpreter that it is being introduced:
my $login_name = "pittmans";
It can get a little more complicated. If you care about your data, you will probably want to declare your variables only within subs or other blocks, so that it is more difficult to accidentally corrupt their values.
This program works fine without the "use strict" statement?.please advise!!
and deal with the errors the interpreter issues. If it gives you an error message, that is because you are doing something that will make errors more likely. Choosing not to use strict is a directive to the compiler "give me enough rope to ang myself" The compiler will respect that directive.
Also, can someone offer an explanation of how "=" differs from "= ="??
== numeric comparison
If you use the assignment operator in a context calling for numeric comparision, the operation will return true unless you are assigning 0, the empty string '', or undef to the variable. If you have warnings enabled, the interpreter will catch most such cases and warn you about them.