osdsh: 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/osdsh - from package: osdsh

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

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