apt-listbugs: 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/apt-listbugs - from package: apt-listbugs
/usr/sbin/apt-listbugs - from package: apt-listbugs

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

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