intel-gpu-overlay: 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/intel-gpu-overlay - from package: intel-gpu-tools

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

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