emgrip: 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/emgrip - from package: emdebian-grip

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

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