cfba2fba: 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 CentOS possible default full paths are:

/usr/bin/cfba2fba - from package: hercules

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/cfba2fba - from package: hercules

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

Error in other languages:
cfba2fba: bevel nie gevind nie
cfba2fba: comandă negăsită
cfba2fba: comando não encontrado
cfba2fba: commande introuvable
cfba2fba: command not found
cfba2fba: käsku ei ole
cfba2fba: không tìm thấy lệnh
cfba2fba: komanda nerasta
cfba2fba: Kommando nicht gefunden.
cfba2fba: kommandot finns inte
cfba2fba: komut yok
cfba2fba: nie znaleziono polecenia
cfba2fba: níor aimsíodh an t-ordú
cfba2fba: no se encontró la orden
cfba2fba: no s'ha trobat l'ordre
cfba2fba: opdracht niet gevonden
cfba2fba: parancs nem található
cfba2fba: perintah tidak ditemukan
cfba2fba: príkaz nenájdený
cfba2fba: příkaz nenalezen
cfba2fba: команда не найдена
cfba2fba: командата не е открита
cfba2fba: 命令找不到
cfba2fba: コマンドが見つかりません