${(O)…}: Sort in descending order

(O) sorts in descending, lexical order. Combined with a, i, n, or - it reverses the sort order of the result.

o is the opposite and sets ascending sort order.

Links

• Zsh manual on parameter expansion flags

Examples

Lexical, case-sensitive sorting in ascending order

1 2	declare data=(z X A a) echo "Sorted in descending order: " ${(O)data}

Output:

1	Sorted in descending order: z X A a