Which option will be used with sort command to start sorting ofter the nth column of the (m+l)th field ?
Correct answer: B. +m.n
- A. -m.n
- B. +m.n
- C. + n.m+1
- D. +(m+l).n
Explanation
In the traditional Unix `sort` syntax, `+m.n` specifies a sort key beginning at a character position within a field, so option b matches the described notation. This is an obsolete form in modern `sort`, where `-k` is normally used.
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