intone: command not found

Have You tried accessing the binary with the full path?

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/intone - from package: intone

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