uuenview: 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/uuenview - from package: uudeview

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

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