uif: 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/sbin/uif - from package: uif

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

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