$ perl -c tmpx.pl
"my" variable $var masks earlier declaration in same statement at tmpx.pl line 5.
Global symbol "$fh" requires explicit package name (did you forget to declare "my $fh"?) at tmpx.pl line 1.
Global symbol "$fh3" requires explicit package name (did you forget to declare "my $fh3"?) at tmpx.pl line 2.
syntax error at tmpx.pl line 2, near "$fh3 for "
Global symbol "$fh" requires explicit package name (did you forget to declare "my $fh"?) at tmpx.pl line 4.
Can't redeclare "my" in "my" at tmpx.pl line 6, near "my"
Global symbol "$var" requires explicit package name (did you forget to declare "my $var"?) at tmpx.pl line 6.
syntax error at tmpx.pl line 7, near ") }"
Global symbol "$fh" requires explicit package name (did you forget to declare "my $fh"?) at tmpx.pl line 9.
Global symbol "$fh" requires explicit package name (did you forget to declare "my $fh"?) at tmpx.pl line 10.
Unmatched right curly bracket at tmpx.pl line 10, at end of line
tmpx.pl has too many errors.