verilator_bin_dbg: 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/verilator_bin_dbg - from package: verilator

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

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