bglmem: 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/bglmem - from package: bigloo

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

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