gnomine: 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/gnomine - from package: gnome-games

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

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