argonaut-fuse: 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/sbin/argonaut-fuse - from package: argonaut-fuse

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

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