bugz: 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 CentOS possible default full paths are:

/usr/bin/bugz - from package: pybugz

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/bugz - from package: bugz

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

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