spc: 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/spc - from package: supercat

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

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