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  1. or download this
    dd if=infile of=outfile 2>&1
  2. or download this
    my @r = `dd if=infile of=outfile 2>&1`;
foreach (@r) {
    chomp;
    print "***$_***\n";
}
  3. or download this
    ***0+1 records in***
***0+1 records out***
  4. or download this
    # BAD CODE
my @r = `dd if=infile >outfile 2>&1`;