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This post is just intended as an introduction to using curl to download files with sequences in their filename. curl and wget are the most popular command-line tools (with curl being a library) for downloading remote content from the CLI. I found when the -o filename started with a # the value needed to be enclosed with quotes otherwise you get the error "curl: option -o: requires parameter" Now read the manpage The values in the sequence placeholder are available in #1, #2, etc where each hash number corresponds to a placeholder.Īs an example, if we were to download to  but save the files as 1.html to 20.html, do this: curl -o "#1.html" If you wanted to download some files but make the output filename different from the source filename this can easily be done with curl too. png Saving with a different filename, based on the sequence

#Curl download file how to#

In conclusion, we have discussed how to download parts of a file with curl and subsequently join them to get the desired output.Curl -O.

We will continue with above example to make things more clear. cat download-file.part > file-name.originalĬat is the command-line utility used to join files,ĭownload-file.part are parts which we have just downloaded, andįile-name.original the original name of our file. Join downloaded parts of our fileįirst, we will discuss the syntax of the command. Here, the -O flag tells curl to download and save the file in the current directory. To get the desired outcome, we would use cat command. Download File Using curl This is a very basic way of using curl. If the site redirects curl further (and if you tell curl to follow redirects), it does not change the file name curl will use for storing this. You specify the URL and curl picks the name from this data. Lastly, we need to combine different parts of the downloaded file. The -O option selects the local file name to use by picking the file name part of the URL that you provide. It will download the remaining part of the file itself.

Like wget, curl is also one of the most popular commands to download files in Linux terminal. Similarly for subsequent parts - curl -range 500000000-999999999 -o xyz.part2 curl -range 1000000000-1499999999 -o xyz.part3 curl -range 1500000000-o xyz.part4 In the last instruction we have not specified any stop range. Download files from Linux command line using curl. There are multiple options on Unix-like systems that. You will often need to download files using the shell interface. We have not chosen the exact file size of 500MBs to make it less tedious. Downloading files with wget, curl and ftp. So, it may look like - curl -range 0-499999999 -o xyz.part1 This downloads the file size of approximately 475 MBs. Start-stop to define the start and stop byte range,įile-name-n.part is the output for part file downloaded, and range specifies the range of the file to be downloaded, Therefore, we would use curl command-line utility with -range option defining the size of download for each of the parts.įirst, we will discuss the syntax for the command - curl -range start-stop -o file-name.partn For some reason, we can download the file only in parts of 500MBs. Lets say we are about to download xyz -desktop-amd64.iso. We would discuss the steps involved with the help of an example.

#Curl download file install#

Sudo apt install curl Download a file in parts with curl

#Curl download file update#

Run the following in terminal - sudo apt update We need to update the repository to get the latest version available first thereafter, we will install the package. curl package is already available in standard Ubuntu repository. In case, you don't have one then contact your System Administrator for assistance. The following operations would require you to have superuser privileges. If you have a long list of different files you want to download, you can place them in a text file and run cURL with xargs: xargs -n 1 curl -O fileurls. There are many factors that may interrupt the download process and you can resume download with the help of -C - option. Although curl offers numerous features but for the purpose of this article we would only discuss its -range option. So for example, I renamed the jpg file here: Make sure to use -o in lowercase. curl - a command-line utility is used to transfer data from/to a server. In this article, we would discuss how to download a file in parts with curl in Ubuntu. One of the most common reason affecting users is limited bandwidth available. There could be multiple reasons why one would want to download a larger file in parts.