dbrowcount: 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/dbrowcount - from package: perl-Fsdb

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

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