kdebugdialog: 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/kdebugdialog - from package: kdebase-runtime

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

On Debian possible default full paths are:

/usr/bin/kdebugdialog - from package: kde-runtime

You may install the required package with command apt-get install {package}

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