gdbdump: 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 Debian possible default full paths are:

/usr/bin/gdbdump - from package: lx-gdb

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

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