Bash command for Dropbox Share...

dropbox.sh

DROPBOX_SIZE_LIMIT=3000
DROPBOX_FOLDER="$HOME/Dropbox"
DROPBOX_SHARED_INDEX="$DROPBOX_FOLDER/Shared/.index"

function share {

    current=`du -s $DROPBOX_FOLDER | cut -f1`

    # with no arguments, echo current usage
    if [ "$#" -eq 0 ]; then
        current_percent=`bc <<< "scale=2; ($current/$DROPBOX_SIZE_LIMIT)*100"`
        echo "Currently using ${current}M (${current_percent}%) of Dropbox folder"
        return
    fi

    # check if first argument is a file or directory
    if [ ! -f $1 ] && [ ! -d $1 ]; then
        echo "'$1' is not a file or directory"
        return
    fi

    # ask for confirmation if the file is large
    new=`du -s $1 | cut -f1`
    if (( new > 50 )); then
        read -p "'$1' is large (${new}M), continue? " -n 1 -r
        echo
        if [[ ! $REPLY =~ ^[Yy]$ ]]; then
            return
        fi
    fi

    # ask for confirmation if file pushes Dropbox over limit
    total=$(( current + new ))
    if (( total > DROPBOX_SIZE_LIMIT )); then
        read -p "Sharing '$1' will push Dropbox folder over the size limit, continue? " -n 1 -r
        echo
        if [[ ! $REPLY =~ ^[Yy]$ ]]; then
            return
        fi
    fi

    echo "Sharing '$1' to Dropbox..."
    mv "$1" "$DROPBOX_FOLDER/Shared/"
    ln -s "$DROPBOX_FOLDER/Shared/$(basename $1)" "$1"
    echo "$DROPBOX_FOLDER/Shared/$(basename $1)	$(readlink $1)" >> $DROPBOX_SHARED_INDEX
}