bscan.mysql: 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/bscan.mysql - from package: bacula-storage-mysql

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

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