bacula: 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/sbin/bacula - from package: bacula-common

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