scpr: 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/scpr - from package: libsc-dev

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

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