EMPTY: 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/empty - from package: empty-expect
/usr/share/perl5/auto/share/dist/Poet/generate.skel/bin/tmp/EMPTY - from package: libpoet-perl

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