euktopst: command not found

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/euktopst - from package: eukleides

You may install the required package with command apt-get install {package}

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