grail-test-propagation: 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/grail-test-propagation - from package: grail-tools

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

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