saint-spc-noctrl-matrix: 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/saint-spc-noctrl-matrix - from package: saint

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

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