How to Ignore No-Cache Directive When Downloading in Ubuntu

This article explains how to download files on Ubuntu while bypassing cache control restrictions. You will learn how to use command-line tools to ensure you retrieve a fresh copy of a file regardless of server headers. The following methods cover both curl and wget utilities commonly available in Linux environments.

Using Curl to Bypass Cache

The curl utility allows you to send custom HTTP headers to the server. To ignore caching directives and force a fresh download, include the Cache-Control header in your request. Open your terminal and run the following command:

curl -H "Cache-Control: no-cache" -O https://example.com/file.zip

The -H flag sets the header, and -O saves the file with its original name. This tells intermediate proxies and the server to bypass stored versions and deliver the latest content.

Using Wget for Direct Downloads

Wget typically ignores caching directives by default because it is designed to save files directly to disk rather than store them in a browser cache. To ensure you bypass any proxy caching, you can send a custom header similar to curl. Run this command:

wget --header="Cache-Control: no-cache" https://example.com/file.zip

This command forces the download request to ignore cached copies held by network intermediaries. Wget will save the file to your current directory regardless of the server’s no-cache response directive.

Verifying the Download

After downloading, check the file timestamp and size to ensure it matches the expected fresh version. You can use the ls -l command to view file details in your terminal. These methods ensure you always obtain the latest data without interference from cache directives.