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### Suppressing Differences in Blank Lines

The `-B` and `--ignore-blank-lines` options ignore insertions or deletions of blank lines. These options affect only lines that are completely empty; they do not affect lines that look empty but contain space or tab characters. With these options, for example, a file containing

    1.  A point is that which has no part.

    2.  A line is breadthless length.
    -- Euclid, The Elements, I

is considered identical to a file containing

    1.  A point is that which has no part.
    2.  A line is breadthless length.

    -- Euclid, The Elements, I