Guide to enable macOS Terminal to respect system proxy

guide.md

Copy and paste the code below at the beginning of ~/.bash_profile.

export http_proxy=`scutil --proxy | awk '\
  /HTTPEnable/ { enabled = $3; } \
  /HTTPProxy/ { server = $3; } \
  /HTTPPort/ { port = $3; } \
  END { if (enabled == "1") { print "http://" server ":" port; } }'`
export HTTP_PROXY="${http_proxy}"
export https_proxy=`scutil --proxy | awk '\
  /HTTPSEnable/ { enabled = $3; } \
  /HTTPSProxy/ { server = $3; } \
  /HTTPSPort/ { port = $3; } \
  END { if (enabled == "1") { print "http://" server ":" port; } }'`
export HTTPS_PROXY="${https_proxy}"

Source: https://dmorgan.info/posts/mac-network-proxy-terminal/

Note: If you're using Tor, SOCKS proxy isn't supported by Terminal, so add HTTPTunnelPort 9080 at /usr/local/etc/tor/torrc