: The following command (when replacing USERNAME) can be used on typical Linux distributions to extract the required ID to use for this property from a user's page on Flickr: wget -q -O - 'https://www.flickr.com/people/USERNAME/' | xmllint --html --recover --nowarning --xpath '//script[@class="modelExport"]' - 2>/dev/null | grep -Po '(?<="nsid":")\d{5,11}@N\d{2}(?=","pathAlias")'