troubleshooting Question

Execute multiple curl cmds with sleep and send output to file

Avatar of Larry Groves
Larry GrovesFlag for United States of America asked on
JSONLinuxUnix OSSystem Programming
10 Comments1 Solution429 ViewsLast Modified:
First off, I am, in no way a Unix/Linux expert, so please bear with me. Also, I sure hope I've selected the proper topics for this question...

I need to run a few thousand curl cmds but I'm having difficulties figuring out how to go about doing this.

1. The curl is an XPOST (e.g. JSON)
For example:
curl -XPOST -H 'name1: value1' -H 'name2: value2' -H "Content-type: application/json" -d '{ "name3": [{"blah1": "blah1","aaa1": "blah2"}]}' 'http://domain.com'
curl -XPOST -H 'name1: value1' -H 'name2: value2' -H "Content-type: application/json" -d '{ "name3": [{"blah2": "blah2","aaa2": "blah2"}]}' 'http://domain.com'
curl -XPOST -H 'name1: value1' -H 'name2: value2' -H "Content-type: application/json" -d '{ "name3": [{"blah3": "blah3","aaa3": "blah2"}]}' 'http://domain.com'

The thing is I need to run this in a script so that there is a delay between each one. Also, once 1 curl is run, I get back a result which I'd like to save.

I thought I could just load all of the curl cmds in a text file and run something like:

while read line; do $line; sleep 5; done < input_curl.txt >> output_curl.txt

The resulting curl response would be something like:
{"name2":"value2","resultname1":resultvalue1,"resultvalue2":"resultname2","resultname3": etc etc...

My thought was that I'd be able to run each curl, line by line, then have it sleep for 5 seconds, and then run the next one. And, the curl result would be writen to output_curl.txt. Of course, that doesn't work.

Any help would be greatly appreciated.

Thanks,
Larry
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