printdbm: 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/printdbm - from package: tmda

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

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