code:

#!/bin/bash

# grab-ftp.sh
# download entire FTP with wget, then package in tar

target="$1"

wget -r -l 0 -np -nc "$target"

if [[ "$target" =~ ^[url]ftp://.*[/url]$ ]]
    then
    target="$(echo "$target" | cut -d '/' -f 3)"
    echo "ftp"
    echo "$target"
fi

# create archive
tar cJvf $(date +%Y).$(date +%m).$(date +%d)."$target".tar.xz "$target" --remove-files

# create file list
tar tvf $(date +%Y).$(date +%m).$(date +%d)."$target".tar.xz > $(date +%Y).$(date +%m).$(date +%d)."$target".tar.xz.txt

# create sha256 sum so you can validate the archive later
sha256sum $(date +%Y).$(date +%m).$(date +%d)."$target".tar.xz > $(date +%Y).$(date +%m).$(date +%d)."$target".tar.xz.sha256