controlbatch: 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/lib/news/bin/controlbatch - from package: inn2

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

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