dbcolstats: 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/dbcolstats - from package: perl-Fsdb

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