ocaml-bdump: 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/ocaml-bdump - from package: ocaml-biniou-devel

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

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