ETL-config: 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/ETL-config - from package: ETL-devel

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

On Debian possible default full paths are:

/usr/bin/ETL-config - from package: etl-dev

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

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