Use the -i option for command line perl, e.g,

perl -pi -e 'chomp; ($_ = "\t$_\t") =~ s/\t(?=\t)/\tMissing/g;' \
         -e 's/\A\t//; s/\t\Z/\n/;' RawFile

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In reply to Re: how to in-place update a dataset? by jaredor
in thread how to in-place update a dataset? by littlewenwen

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