${(n)…}: Sort numerically

(n) sorts decimal integers numerically.

By using (-) instead, decimal integers with a leading minus sign are properly sorted.

With an additional (O), the sort order is reversed: ${(nO)name}.

Links

• Zsh manual on parameter expansion flags

Examples

Sort integers

1 2 3 4 5

declare data=(100 1 2 3 10) echo "Sorting positive integers: " ${(n)data} data=(100 -1 2 3 -10) echo "Unsupported negative integers: " ${(n)data} echo "Supporting negative integers: " ${(-)data}

Output:

1 2 3

Sorting positive integers: 1 2 3 10 100 Unsupported negative integers: -1 -10 2 3 100 Supporting negative integers: -10 -1 2 3 100