dbcolize: 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/dbcolize - from package: perl-Fsdb

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

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