kaddprinterwizard: 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/kaddprinterwizard - from package: kdelibs3

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