screendump: 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/screendump - from package: kbd

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

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