How do you run curls in parallel?

How do you run curls in parallel?

Run parallel requests using the xargs command

1. $ echo ‘Africa Asia Europe America’ | xargs mkdir.
2. $ curl -I “https://linuxways.net”
3. $ xargs -I % -P 5 curl -I “https://linuxways.net” < <(printf ‘%s\n’ {1.. 10})
4. $ seq 1 10 | xargs -n1 -P 5 curl -I “https://linuxways.net”
5. $ xargs -P 5 -n 1 curl -O < download.txt.

How do I run multiple curl commands in shell script?

7 Answers

1. make a file called curlrequests.sh.
2. save the file and make it executable with chmod : chmod +x curlrequests.sh.
3. run your file: ./curlrequests.sh.

Do bash scripts run in parallel?

To run script in parallel in bash, you must send individual scripts to background. Next you can put some function to collect the exit status of all the processes you pushed to the background so you can print proper exit status.

How do I run multiple Bash scripts in parallel?

You can also execute all bash script of a directory using below command. GNU parallel is a shell tool for executing jobs in parallel using one or more computers. A job can be a single command or a small script that has to be run for each of the lines in the input.

How to execute multiple curl requests in parallel?

Run parallel requests using the xargs command The xargs command is a command in Linux and UNIX-like operating systems that accepts or takes arguments from standard input and then runs a command for each argument. Simply put, the xargs command can take the output of a command and process it as an argument of a different command.

How can I run multiple programs in parallel from a bash script?

How can I run multiple programs in parallel from a bash script? You have various options to run programs or commands in parallel on a Linux or Unix-like systems: => Use GNU/parallel or xargs command. => Use wait built-in command with &.

What can you do with curl in Linux?

The Linux curl command is a command-line utility that is used for file transfer. It provides support for a myriad of protocols such as HTTP, HTTPS, FTP, FTPS, SCP, TFTP, and so many more. Suppose you want to get the HTTP headers of a website using the curl command.

How to count the number of curl processes?

I am using ps aux | grep curl | wc -l to count the number of current curl processes. This number increases rapidly up to 2-4 thousands and then starts to continuously decrease. If I add simple parsing through piping curl to awk ( curl | awk > output) than curl processes number raise up just to 1-2 thousands and then decreases to 20-30…