genconf: 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/genconf - from package: gromacs

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

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