rmol_drawBPC: command not found

Have You tried accessing the binary with the full path?

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/rmol_drawBPC - from package: rmol

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