Quote

Execution of meinscript.pl aborted due to compilation errors (#1)
(F) Probably means you had a syntax error. Common reasons include:

A keyword is misspelled.
A semicolon is missing.
A comma is missing.
An opening or closing parenthesis is missing.
An opening or closing brace is missing.
A closing quote is missing.

Often there will be another error message associated with the syntax
error giving more information. (Sometimes it helps to turn on -w.)
The error message itself often tells you where it was in the line when
it decided to give up. Sometimes the actual error is several tokens
before this, because Perl is good at understanding random input.
Occasionally the line number may be misleading, and once in a blue moon
the only way to figure out what's triggering the error is to call
perl -c repeatedly, chopping away half the program each time to see
if the error went away. Sort of the cybernetic version of S<20
questions>.

Uncaught exception from user code:
syntax error at meinscript.pl line 41, near "if $_ "
syntax error at meinscript.pl line 46, near "}"
Execution of meinscript.pl aborted due to compilation errors.
at meinscript.pl line 46

Quote

Use of uninitialized value in pattern match (m//) at meinscript.pl line 42 (#1)
(W uninitialized) An undefined value was used as if it were already
defined. It was interpreted as a "" or a 0, but maybe it was a mistake.
To suppress this warning assign a defined value to your variables.

To help you figure out what was undefined, perl tells you what operation
you used the undefined value in. Note, however, that perl optimizes your
program and the operation displayed in the warning may not necessarily
appear literally in your program. For example, "that $foo" is
usually optimized into "that " . $foo, and the warning will refer to
the concatenation (.) operator, even though there is no . in your
program.