msghack: 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 CentOS possible default full paths are:

/usr/bin/msghack - from package: gettext

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/msghack - from package: translate-toolkit

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

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