how to you toggle on and off a web proxy in os x from the command line

Question

In OS X, you turn on and off a web proxy from System Preferences > Network > Proxies, by checking Web Proxy (HTTP) and designating the Web Proxy Server etc. and by clicking OK a

Answer 1

To just toggle on/off my proxies in OSX Mavericks, I set up this script. Note that this example just affects my wi-fi adapter. I am toggling on/off the web, streaming, and SOCKS proxies all at once. You could set the proxy address as well, per Gordon's example, but I already had this saved through the System Preferences > Network > Proxies GUI.

BASH Script, saved as prox.sh:

#!/bin/bash

e=$(networksetup -getwebproxy wi-fi | grep "No")

if [ -n "$e" ]; then
  echo "Turning on proxy"
  sudo networksetup -setstreamingproxystate wi-fi on
  sudo networksetup -setsocksfirewallproxystate wi-fi on
  sudo networksetup -setwebproxystate wi-fi on
else
  echo "Turning off proxy"
  sudo networksetup -setstreamingproxystate wi-fi off
  sudo networksetup -setsocksfirewallproxystate wi-fi off
  sudo networksetup -setwebproxystate wi-fi off
fi

Then symlink the script on the command line:

ln -s /Script/Location/prox.sh prox-toggle

Now you can toggle the proxies on/off at the command line:

bash prox-toggle