fteqcc: 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/fteqcc - from package: fteqcc

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

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