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package Utilities;

...
our $UTIL_THAT = "util_that";

1;

$ perl -Mstrict -Mwarnings -E '
    use Utilities;                     
...
'
Global symbol "$SYS_DIR" requires explicit package name at -e line 3.
Execution of -e aborted due to compilation errors.

$ perl -Mstrict -Mwarnings -E '
    use Utilities qw{$SYS_DIR};        
    say $SYS_DIR;
'
sys_dir

$ perl -Mstrict -Mwarnings -E '
    use Utilities qw{:SYS};            
    say $SYS_DIR;
'
sys_dir

$ perl -Mstrict -Mwarnings -E '
    use Utilities qw{:UTIL $SYS_OTHER};
...
'
sys_other
util_that