Problem: Even with dev null and disown..web browser is still reporting errors to the terminalit launched from of.  web_browser < /dev/null > /dev/null 1>&2 & disown
disown : unable to stop stderr s
shell;io redirection;stderr;disown
You've got your redirections in disorder.web_browser </dev/null 2>/dev/null 1>&2 & disownWhat you did was first to redirect standard output to /dev/null, and then again to standard error.