numprocess: 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/numprocess - from package: num-utils

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

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