origtargz: 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/origtargz - from package: devscripts

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

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