dbrowdiff: 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/dbrowdiff - from package: perl-Fsdb

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

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