gigdump: 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/gigdump - from package: gigtools

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

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