uulog: 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/uulog - from package: uucp

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

On Debian possible default full paths are:

/usr/bin/uulog - from package: uucp

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

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