`${(L)…}`: Convert to lowercase

(L) converts all letters of the result to lowercase.

(U) is the opposite and converts to uppercase.

Examples

Convert array values to lowercase

1
2

declare data=(JOE WILLIAM JACK AVERELL)
echo "Dalton brothers: ${(L)data}"

Output:

`1`	`Dalton brothers: joe william jack averell`

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