The wget command-line utility can be used with a Squid proxy server by setting the http_proxy environment variable.
Here’s an example of how to use wget with a Squid proxy server:
http_proxy=http://squid-proxy-server-address:port wget http://example.com/file.zip
Replace squid-proxy-server-address and port with the address and port of your Squid proxy server, and replace http://example.com/file.zip with the URL of the file you want to download.
Note: Make sure that the Squid proxy server allows you to use it as a proxy, and that the URL you’re trying to download is not blocked by the proxy.