How to resume a partially downloaded file with cURL?

To resume a partially downloaded file using cURL, you can follow these steps:

1. Find out the size of the partially downloaded file. This can be done by checking the file properties or by using the filesize() function in PHP.
2. Use the -C or --continue-at flag with cURL followed by the byte offset, indicating where the download should resume from. The byte offset is the size of the partially downloaded file.
3. Specify the URL of the file you want to download.
4. Optionally, you can use the -o or --output flag followed by the desired file name to save the downloaded file with a specific name.

Here is an example command to resume a partially downloaded file using cURL:

Replace <byte_offset> with the size of the partially downloaded file, <url> with the URL of the file you want to download, and <output_file_name> with the desired file name to save the downloaded file.

For example, to resume a partially downloaded file named example.zip from byte offset 1000, you can use the following command:

This will resume the download from the byte offset 1000 and save the downloaded file as example.zip.