munimatch: 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/munimatch - from package: munipack

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

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