osdctl: command not found

Have You tried accessing the binary with the full path?

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/osdctl - from package: osdsh

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