autogen: 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/autogen - from package: autogen

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