jigdo-file: 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/jigdo-file - from package: jigdo-file

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

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