Sort from current point to end of file in gvim?

Question

Below in command mode (gvim)

:.,G!sort 

leads to

E464: Ambiguous use of user defined-command

:help E464

  Ambiguous use of user-defined command

There are two user-defined commands with a common name prefix, and you used
Command-line completion to execute one of them. | user-cmd-ambiguous |
Example:>
    : command MyCommand1 echo "one"
    : command MyCommand2 echo "two"
    : Mycommand

  Not an editor command

I looked at this for a while, can someone throw me a bone or suggest a way to do this without resorting to visual mode?

Answer 1

I usually use :.,$!sort; Does this work for you?

Edit Original Poster

G . : help range . .

Line numbers may be specified with:     *:range* *E14* *{address}*
    {number}    an absolute line number
    .       the current line              *:.*
    $       the last line in the file         *:$*
    %       equal to 1,$ (the entire file)        *:%*
    't      position of mark t (lowercase)        *:'*
    'T      position of mark T (uppercase); when the mark is in
            another file it cannot be used in a range
    /{pattern}[/]   the next line where {pattern} matches     *:/*
    ?{pattern}[?]   the previous line where {pattern} matches *:?*
    \/      the next line where the previously used search
            pattern matches
    \?      the previous line where the previously used search
            pattern matches
    \&      the next line where the previously used substitute
            pattern matches

Each may be followed (several times) by '+' or '-' and an optional number.
This number is added or subtracted from the preceding line number.  If the
number is omitted, 1 is used.

Answer 2

G - , . . :help range.

Answer 3

"vim has internal sort
:., $ sort

"if has numbers use
:., $ sort n

"to delete duplicated lines
:., $ sort u

"read: h sort