Change proxy settings in Ubuntu

update_proxy.sh

#!/bin/bash

# Check if the proxy URL is passed as an argument
if [ -z "$1" ]; then
  echo "Please provide the full proxy URL as an argument. E.g., ./update_proxy.sh http://192.168.1.3:3333"
  exit 1
fi

PROXY_URL="$1"

# Function to update /etc/profile.d/proxy.sh
update_profile_proxy() {
  echo "# set proxy config via profie.d - should apply for all users" > /etc/profile.d/proxy.sh
  echo "# http/https/ftp/no_proxy" >> /etc/profile.d/proxy.sh
  echo "export http_proxy=\"$PROXY_URL/\"" >> /etc/profile.d/proxy.sh
  echo "export https_proxy=\"$PROXY_URL/\"" >> /etc/profile.d/proxy.sh
  echo "export ftp_proxy=\"$PROXY_URL/\"" >> /etc/profile.d/proxy.sh
  echo "export no_proxy=\"127.0.0.1,localhost\"" >> /etc/profile.d/proxy.sh
  echo "" >> /etc/profile.d/proxy.sh
  echo "# For curl" >> /etc/profile.d/proxy.sh
  echo "export HTTP_PROXY=\"$PROXY_URL/\"" >> /etc/profile.d/proxy.sh
  echo "export HTTPS_PROXY=\"$PROXY_URL/\"" >> /etc/profile.d/proxy.sh
  echo "export FTP_PROXY=\"$PROXY_URL/\"" >> /etc/profile.d/proxy.sh
  echo "export NO_PROXY=\"127.0.0.1,localhost\"" >> /etc/profile.d/proxy.sh
}

# Function to update ~/.wgetrc
update_wgetrc() {
  echo "use_proxy = on" > ~/.wgetrc
  echo "http_proxy = $PROXY_URL/" >> ~/.wgetrc
  echo "https_proxy = $PROXY_URL/" >> ~/.wgetrc
  echo "ftp_proxy = $PROXY_URL/" >> ~/.wgetrc
}

# Main function to update the proxy settings
update_proxy_settings() {
  echo "Updating proxy settings..."

  # Call the function to update profile proxy
  update_profile_proxy

  # Call the function to update wgetrc
  update_wgetrc

  echo "Proxy settings updated successfully!"
}

# Run the main function
update_proxy_settings

# Download the script
wget https://gist.github.com/darkato42/317c0e1a03c3cf8ee644a211be926549/raw/update_proxy.sh

# Make the script executable
chmod +x update_proxy.sh

# Run the script with the proxy URL
sudo ./update_proxy.sh http://192.168.1.100:7890