simulavr: 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

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/simulavr - from package: simulavr

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