turnincfg: 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/turnincfg - from package: turnin-ng

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

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