curl -C - -o partially_downloaded_file 'www.example.com/path/to/the/file'

resume download using curl


7
By: weldabar
2012-11-05 17:14:16

1 Alternatives + Submit Alt

  • If you are downloading a big file (or even a small one) and the connection breaks or times out, use this command in order to RESUME the download where it failed, instead of having to start downloading from the beginning. This is a real win for downloading debian ISO images over a buggy DSL modem. Take the partially downloaded file and cat it into the STDIN of curl, as shown. Then use the "-C -" option followed by the URL of the file you were originally downloading. Show Sample Output


    -1
    cat file-that-failed-to-download.zip | curl -C - http://www.somewhere.com/file-I-want-to-download.zip >successfully-downloaded.zip
    linuxrawkstar · 2009-08-05 13:33:06 3

What Others Think

This would be useful if all web browsers used the same partial download format.
DevEd · 288 weeks and 5 days ago
This one works best: "curl -C - -o partially_downloaded_file" - and here's the trick you usually need to go along with it a) Open your browser to the file you want to download b) right-click on pick "inspect element" c) click on the "network" tab that shows up d) click (left) to start downloading the file again - when the file-save dialogue comes up, cancel it. e) go back to the network tab, right-click on the last entry, and choose "copy as cURL" *) You now have a new download URL with all the login/authorization/cookies/etc stuff properly included. If you use Linux, replace all " with ' before use.
cnd · 163 weeks and 6 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

You must be signed in to comment.

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands



Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for: