[Bug-wget] Wget doesn't post POST data if it's being run from a bash script for unkown reason

[Ernestas]

Umm... How could I run "wget  --save-cookies='cookie.txt' 
--keep-session-cookies --post-data 
'username=ernestas&password=password&login_cookie=1' hostname" from bash 
script? For some kind of reason hostname doesn't get post data.
But if I run this command from a command line - it works great.