dbrowenumerate: 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/dbrowenumerate - from package: perl-Fsdb

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