rmsgcat: 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/rmsgcat - from package: ruby-gettext

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

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