autoreconf-dickey: 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/autoreconf-dickey - from package: autoconf-dickey

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