edg-mkgridmap: 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/sbin/edg-mkgridmap - from package: edg-mkgridmap

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

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