inotify-hookable: 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/inotify-hookable - from package: inotify-hookable

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

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