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```
use strict;
use warnings;
```

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$ ./scr.pl 
Global symbol "$dirtoget" requires explicit package name at ./scr.pl l
+ine 10.
...
Global symbol "$x" requires explicit package name at ./scr.pl line 27.
Global symbol "$line" requires explicit package name at ./scr.pl line 
+27.
Missing right curly or square bracket at ./scr.pl line 28, at end of l
+ine