Automatically saves the file using its original name from the URL. curl -O https://example.com Use code with caution. Copied to clipboard 2. Essential "Real World" Flags
While wget is often cited as the go-to for simple downloads, curl offers a level of granular control—supporting over 25 protocols—that makes it the industry standard for data transfer. 1. The Basics: How to Download a Single File
Reliable, scriptable, and everywhere – the gold standard for CLI downloads
I’ve used curl for years to download files from the command line, and it remains my go‑to tool. The basic command – curl -O https://example.com/file.zip – just works. curl download
At its most basic level, curl is deceptively simple. To download a file, one merely types curl followed by the URL. Unlike a web browser, which renders HTML, executes JavaScript, and displays images, curl is concerned only with the raw data. It dumps the output directly into the terminal’s standard output by default, allowing a user to inspect the raw HTML or text of a webpage instantly. If the goal is to save the file rather than read it immediately, the -O (uppercase O) flag instructs curl to save the file with its remote name, or the -o (lowercase o) flag allows the user to specify a custom filename. This stripped-down approach removes the bloat of rendering engines, making curl an incredibly lightweight tool for quick file retrieval.
Many URLs (like bit.ly links or https upgrades) redirect you to another location. By default, curl won't follow these. Use the flag to ensure you reach the final destination. curl -L -O https://github.com Use code with caution. Resuming an Interrupted Download ( -C - )
# Limit download to 500KB per second curl --limit-rate 500k -O https://example.com Use code with caution. Authenticated Downloads Automatically saves the file using its original name
Specify exactly what you want the local file to be called. curl -o my_document.pdf https://example.com Use code with caution. Copied to clipboard
Mastering the curl Download: A Comprehensive Guide In the world of command-line tools, few utilities are as versatile and indispensable as (Client URL). Whether you are a developer automating a deployment script, a sysadmin fetching logs, or a hobbyist downloading a large dataset, understanding how to use curl for downloading files is a fundamental skill.
In the bustling ecosystem of the internet, data is in constant motion. Behind the sleek interfaces of web browsers and the flashy animations of modern web applications lies a fundamental, invisible process: the transfer of files. While graphical user interfaces offer convenience, they often obscure the mechanics of how data moves from a server to a local machine. This is where curl (Client URL) steps in. As a command-line tool used for transferring data with URLs, curl is the unsung hero of the developer’s toolkit. It offers a level of precision, automation, and versatility that transforms the simple act of "downloading" into a powerful engineering capability. Essential "Real World" Flags While wget is often
By default, curl prints the file content to your terminal. To save it as a file, use one of these flags:
For files behind a login, curl supports various authentication methods, including for APIs and Basic Auth .
curl -H "Authorization: Bearer YOUR_TOKEN" -O https://example.com Use code with caution. 4. Summary Table of Common curl Download Flags -o Saves download to a specific filename. -O Remote Name Saves download using the remote filename. -L Follows HTTP redirects (highly recommended). -C - Resumes an interrupted download automatically. -u Provides credentials for Basic Authentication. -s Hides the progress bar and error messages. -I Fetches only the headers (useful for checking file size). 5. Safety and Best Practices How to Download Files with cURL on Command Line