obs-buildvc: 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
/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/obs-buildvc - from package: obs-build

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