coderet: 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/coderet - from package: emboss

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