fractalnow: 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/fractalnow - from package: fractalnow
/usr/share/fractalnow/bin/fractalnow - from package: fractalnow

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

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