How to download file by using shell script (sh) ? How to use wget in shell sctipt to download a file ?

How to download file by using shell script (sh) ? How to use wget in shell sctipt to download a file ?

-----------------------------------------download_file.sh---------------------------------

#!/bin/sh

# directory path where you want to download the file

DIR=/data/test

# wget output file with this name

FILE="test_$(date +'%Y%m%d').xml"

# wget  file download url

URL="http"//www.xyz.com...... "

cd $DIR

#wgt syntax to download file

wget  $URL -O  $FILE