launch command line FROM kodi

[Enderswood]

hi, absolutly not sure its the right place, but dont know where to ask...

i have set a command that start download from FTP with a wget command. I can launch it from putty. work perfect, but if i stop my pc, the download stop too.

is there a way to launch a command line from xbian/kodi so i can let it download without my computer on ?

just for info, here is what my command line do :

vi FTP :
cd /mnt/array1/Data/Temp/
wget -c -r -l 0 ftp://user:password@FTPserver/folder/*
chmod -R 777 /mnt/array1/Data/Temp/


Thx a lot !!