$CDs = '/usr/local/opt/podcasts/CDs';
sub dir_addup {
    my $st = stat($File::Find::name);
    $dir_total += $st->size;
}
find(\&dir_addup, $CDs);
some stuff, including creating subdir and adding files therein
find(\&dir_addup, $CDs);
Use of uninitialized value $cwd_untainted in chdir at /usr/share/perl5/File/Find.pm line 282.
Use of uninitialized value $cwd in concatenation (.) or string at /usr/share/perl5/File/Find.pm line 283.
Can't cd to : No such file or directory

##</code><code>##

Use of uninitialized value $cwd_untainted in chdir at /usr/share/perl5/File/Find.pm line 282.
 at /usr/share/perl5/File/Find.pm line 282.
	File::Find::_find_opt(HASH(0x555f6ead3b50), "/usr/local/opt/podcasts/CDs/Django_Reinhardt_Djangology_08") called at /usr/share/perl5/File/Find.pm line 760
	File::Find::find(CODE(0x555f6ed3e838), "/usr/local/opt/podcasts/CDs/Django_Reinhardt_Djangology_08") called at CD_rip.pl line 126
Use of uninitialized value $cwd in concatenation (.) or string at /usr/share/perl5/File/Find.pm line 283.
 at /usr/share/perl5/File/Find.pm line 283.
	File::Find::_find_opt(HASH(0x555f6ead3b50), "/usr/local/opt/podcasts/CDs/Django_Reinhardt_Djangology_08") called at /usr/share/perl5/File/Find.pm line 760
	File::Find::find(CODE(0x555f6ed3e838), "/usr/local/opt/podcasts/CDs/Django_Reinhardt_Djangology_08") called at CD_rip.pl line 126
Can't cd to : No such file or directory
 at /usr/share/perl5/File/Find.pm line 283.
	File::Find::_find_opt(HASH(0x555f6ead3b50), "/usr/local/opt/podcasts/CDs/Django_Reinhardt_Djangology_08") called at /usr/share/perl5/File/Find.pm line 760
	File::Find::find(CODE(0x555f6ed3e838), "/usr/local/opt/podcasts/CDs/Django_Reinhardt_Djangology_08") called at CD_rip.pl line 126