euktoeps: 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/euktoeps - from package: eukleides

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