die
Raises an exception, terminating execution unless caught by an eval
block or a try/catch construct.
If called with a string argument, raises that string as the exception
message. If the string does not end with a newline, Perl appends
at FILE line LINE. If called with a reference (e.g. a hashref or
blessed object), the reference is propagated as the exception value
in $@.
When called with no arguments (or an empty string / undef), re-raises
the current value of $@. If $@ is also empty, dies with "Died".
If there is an active try block (from use feature 'try'), the
exception is caught and execution transfers to the catch block instead
of propagating.
Synopsis
die "something went wrong";
die "Error at $file line $line\n";
die $exception_object;
die; # re-raises $@