misery: 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/misery - from package: misery

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

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