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shar did not work on my system: Can't locate getopts.pl in @inc (@inc contains: /usr/local/lib/perl5/site_perl/5.34.1/armv7l-linux ...)
The original intent of getopt was to raise error for any options (e.g. -x), so convert to Getopt::Std
Add strict
Tested this by creating archive (perl shar ar apply > new.shar) then extracting (sh new.shar)