germinate-pkg-diff: 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/germinate-pkg-diff - from package: germinate

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