Try

txtPathName =  "DADOS\ECT\ECT" + DTOS (DATE ()) + ".TXT"
COPY FILE (ansFullPth) TO (txtPathName) TYPE SDF

>I teste
>
>COPY FILE &anxFullPth TO "DADOS\ENVIO.DBF"
>
>works fine
>
>Then
>
>txtPathName = "DADOS\ECT\" + "ECT" + CHRTRAN(DTOC(DATE()),"/","") + ".TXT"
>COPY FILE &anxFullPth TO txtPathName
>
>Returns:
>
>"command contains unrecognized phrase/keyword"
>
>Also tried
>
>COPY FILE &anxFullPth TO &txtPathName
>
>***** &anxFullPth is the file to be copied with its full path