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All the Perl that's Practical to Extract and Report

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  • $ perl -le 'print "No underscores!" if 1_234_567_890 !~ /_/'
    • $ perl -le 'print "No e!" if 1e6 !~ /e/'
      $ perl -le 'print "There's an e!" if 6666666666666666 =~ /e/'
      $ perl -le 'print "There's a plus!" if 1e15 =~ /\+/'
      $ perl -le 'print "No dot!" if 0.00 !~ /\./'