evolvotron_mutate: 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/evolvotron_mutate - from package: evolvotron

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

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