slc: 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/slc - from package: heimdal-multidev

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

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