How do I download a package with curl?
The basic syntax: Grab files with curl run: curl https://your-domain/file.pdf. Get files using ftp or sftp protocol: curl ftp://ftp-your-domain-name/file.tar.gz. You can set the output file name while downloading file with the curl, execute: curl -o file.
How do I download a JSON file with curl?
To get JSON with Curl, you need to make an HTTP GET request and provide the Accept: application/json request header. The application/json request header is passed to the server with the curl -H command-line option and tells the server that the client is expecting JSON in response.
How do I send a parallel curl request?
Run parallel requests using the xargs command
- $ echo ‘Africa Asia Europe America’ | xargs mkdir.
- $ curl -I “https://linuxways.net”
- $ xargs -I % -P 5 curl -I “https://linuxways.net” < <(printf ‘%s\n’ {1.. 10})
- $ seq 1 10 | xargs -n1 -P 5 curl -I “https://linuxways.net”
- $ xargs -P 5 -n 1 curl -O < download.txt.
How to pass a list of URLs to curl?
curl has the -K options where you can pass multiple urls, reads from a file that has this format: url = url1 # Uncomment if you want to download the file # output = “file1” # Uncomment if your sysadmin only allows well known User Agent # user-agent = “Mozilla/5.0” Also you can use xargs (wget – i style) $ xargs -a urls.txt -I {} curl -# -O {}
How to make a POST request via cURL?
The path to the file needs to be preceded by an @ symbol, so curl knows to read from a file. I need to make a POST request via Curl from the command line. Data for this request is located in a file…
How to pass form fill data to curl?
The following Bash script puts the data being passed to cURL into a text file then uses sed to convert special characters to their Unicode equivalents before recalling the data from the text file (using cat) and placing it back into the variable which is passed to cURL: #! /bin/bash # Put the form fill data into the $DATA variable.
How to use curl to read data from a file?
You can use this to read the values from a JSON file or send it as raw. Suppose you want to make requests in the command-line using cURL, but you have the data to send stored in a file. You can use the Content-Type to specify the media type and then pass the file path containing the data. For this example, I will illustrate using a JSON object.