Set up proxy for terminial and GUI apps (cocoa) on Mac. Use '. proxy.sh [none|atl|sgp|corp|china]' to execute.

proxy.sh

#!/bin/bash
# Available choices:
#    [atl]=web-proxy.atl.hp.com
#    [sgp]=web-proxy.sgp.hp.com
#    [corp]=web-proxy.corp.hp.com
#    [china]=web-proxy.china.hp.com
#
# web-proxy.aus.hp.com port 8080
# proxy.houston.hp.com port 8080
# proxy.austin.hp.com port 8080
# proxy.sgp.hp.com port 8080
# web-proxy.rose.hp.com port 8088
#

SERVICE=Wi-Fi
networksetup='sudo networksetup'

_PORT=:8080
__PORT=${_PORT#:}
_PROTOCOL=http://
select=${1:-sgp}
if [[ $select == none ]]
then
    _PROXY=
elif [[ $select == ?*.*? ]]
then
    _PROXY=$select
else
    _PROXY=web-proxy.$select.hp.com
fi

[ -n "$_PROXY" ] && {
    export proxy=$_PROTOCOL$_PROXY$_PORT # for curl, etc
    export http_proxy=$_PROTOCOL$_PROXY$_PORT
    export https_proxy=$_PROTOCOL$_PROXY$_PORT
    export ftp_proxy=$_PROTOCOL$_PROXY$_PORT
    export all_proxy=socks5h://$_PROXY:1080
    export no_proxy='localhost,127.0.0.0/8,192.168.0.0/16,public,*.local'

    proxycommand="ncat --proxy $_PROXY$_PORT %h %p"
    sed -Ei '' "s/ProxyCommand (none|ncat).*$/ProxyCommand $proxycommand/" ~/.ssh/config
    sudo echo 'ncat --proxy '$_PROXY$_PORT' $*' > /etc/gitproxy
    export GIT_PROXY_COMMAND=/etc/gitproxy

    $networksetup -setwebproxy $SERVICE $_PROXY $__PORT off
    $networksetup -setsecurewebproxy $SERVICE $_PROXY $__PORT off
    $networksetup -setftpproxy $SERVICE $_PROXY $__PORT off
    $networksetup -setsocksfirewallproxy $SERVICE $_PROXY 1080 off


    $networksetup -setwebproxystate $SERVICE on
    $networksetup -setsecurewebproxystate $SERVICE on
    $networksetup -setftpproxystate $SERVICE on
    $networksetup -setsocksfirewallproxystate $SERVICE on
} || {
    unset proxy_command
    unset proxy
    unset http_proxy
    unset https_proxy
    unset ftp_proxy
    unset all_proxy
    unset no_proxy
    unset GIT_PROXY_COMMAND

    sed -i '' 's/ProxyCommand ncat.*$/ProxyCommand none/' ~/.ssh/config

    $networksetup -setwebproxystate $SERVICE off
    $networksetup -setsecurewebproxystate $SERVICE off
    $networksetup -setftpproxystate $SERVICE off
    $networksetup -setsocksfirewallproxystate $SERVICE off
}