minit-shutdown: 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:

/sbin/minit-shutdown - from package: minit

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

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