booldnf: 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/booldnf - from package: boolstuff

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

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