drawvalmap: 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/drawvalmap - from package: dnssec-tools

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

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