seeded-in-ubuntu: 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/seeded-in-ubuntu - from package: ubuntu-dev-tools

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

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