fms: 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/fms - from package: openafs-client

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

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