openshot: 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/openshot - from package: openshot

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