ged2gwb: 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/ged2gwb - from package: geneweb

You may install the required package with command apt-get install {package}
Error in other languages:
ged2gwb: bevel nie gevind nie
ged2gwb: comandă negăsită
ged2gwb: comando não encontrado
ged2gwb: commande introuvable
ged2gwb: command not found
ged2gwb: käsku ei ole
ged2gwb: không tìm thấy lệnh
ged2gwb: komanda nerasta
ged2gwb: Kommando nicht gefunden.
ged2gwb: kommandot finns inte
ged2gwb: komut yok
ged2gwb: nie znaleziono polecenia
ged2gwb: níor aimsíodh an t-ordú
ged2gwb: no se encontró la orden
ged2gwb: no s'ha trobat l'ordre
ged2gwb: opdracht niet gevonden
ged2gwb: parancs nem található
ged2gwb: perintah tidak ditemukan
ged2gwb: príkaz nenájdený
ged2gwb: příkaz nenalezen
ged2gwb: команда не найдена
ged2gwb: командата не е открита
ged2gwb: 命令找不到
ged2gwb: コマンドが見つかりません