mine_detector: 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/mine_detector - from package: mine_detector

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

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