init-checkconf: 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/init-checkconf - from package: upstart

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

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