rcs2atfs: 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/rcs2atfs - from package: atfs

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

Error in other languages:
rcs2atfs: bevel nie gevind nie
rcs2atfs: comandă negăsită
rcs2atfs: comando não encontrado
rcs2atfs: commande introuvable
rcs2atfs: command not found
rcs2atfs: käsku ei ole
rcs2atfs: không tìm thấy lệnh
rcs2atfs: komanda nerasta
rcs2atfs: Kommando nicht gefunden.
rcs2atfs: kommandot finns inte
rcs2atfs: komut yok
rcs2atfs: nie znaleziono polecenia
rcs2atfs: níor aimsíodh an t-ordú
rcs2atfs: no se encontró la orden
rcs2atfs: no s'ha trobat l'ordre
rcs2atfs: opdracht niet gevonden
rcs2atfs: parancs nem található
rcs2atfs: perintah tidak ditemukan
rcs2atfs: príkaz nenájdený
rcs2atfs: příkaz nenalezen
rcs2atfs: команда не найдена
rcs2atfs: командата не е открита
rcs2atfs: 命令找不到
rcs2atfs: コマンドが見つかりません