cfte: 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/cfte - from package: fte

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