minmacs: 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/minmacs - from package: mined

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

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