enblend: 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/enblend - from package: enblend

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