What is the difference between grep -e and grep -E option? was recently migrated from Stack Overflow and I'm wondering why. The SO FAQ clearly states that
software tools commonly used by programmers is a valid post for SO.
Is there a point of clarification that should be added/addressed in the FAQ?
As a footnote, it seems that the whole Stack Exchange network is just meta categorization and there's no real reason that this question could not exist on both sites.