title: How should I export http_proxy variable?
body: <p>I'm trying to write a simple script that will set proxy settings. Actually I just need to export <code>http_proxy ftp_proxy https_proxy ...</code> variables with <code>export</code> command.
  But it's not working when I run it manually from the shell because <code>export</code> affect only current shell and subshells, but no others. Also I don't want to call it from <code>.bashrc</code> because it's not my default proxy settings.</p>
  
  <p>So how should I export <code>http_proxy</code> variable to make effect globally?</p>