flickrdf: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/flickrdf - from package: flickcurl-utils

You may install the required package with command apt-get install {package}

Error in other languages:
flickrdf: bevel nie gevind nie
flickrdf: comandă negăsită
flickrdf: comando não encontrado
flickrdf: commande introuvable
flickrdf: command not found
flickrdf: käsku ei ole
flickrdf: không tìm thấy lệnh
flickrdf: komanda nerasta
flickrdf: Kommando nicht gefunden.
flickrdf: kommandot finns inte
flickrdf: komut yok
flickrdf: nie znaleziono polecenia
flickrdf: níor aimsíodh an t-ordú
flickrdf: no se encontró la orden
flickrdf: no s'ha trobat l'ordre
flickrdf: opdracht niet gevonden
flickrdf: parancs nem található
flickrdf: perintah tidak ditemukan
flickrdf: príkaz nenájdený
flickrdf: příkaz nenalezen
flickrdf: команда не найдена
flickrdf: командата не е открита
flickrdf: 命令找不到
flickrdf: コマンドが見つかりません