LTRIM

    Trim an existing list so that it will contain only the specified range of elements specified. Both and stop are zero-based indexes, where 0 is the first element of the list (the head), 1 the next element and so on.

    and end can also be negative numbers indicating offsets from the end of the list, where -1 is the last element of the list, -2 the penultimate element and so on.

    A common use of LTRIM is together with LPUSH / RPUSH. For example:

    Simple string reply