noreturn: 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/noreturn - from package: emboss

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

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