Combining AWS cli commands with xargs not working

Question

I want to have a one liner for setting properties to AWS Cloudwatch loggroups. I came across the xargs command. But I do not understand what am I doing wrong:

aws logs describe-log-groups \
--query "logGroups[*].logGroupName" \
--output text \ 
| xargs -I {} -n 1 \
 aws logs put-retention-policy \
--log-group-name {} \
--retention-in-days 14

As far as I understood {} takes the first command's output as list and pipes each element to the second command via xargs.

However, I result in this:

An error occurred (InvalidParameterException) when calling the PutRetentionPolicy operation: Member must have length less than or equal to 512

I am assuming that it passed the list to xargs, not just one element of the first command's output.

---

I am using Windows 10 with git bash

Answer 1

aws logs describe-log-groups | \
 jq ".logGroups[].logGroupName" \
 |xargs -I {} -n 1  aws logs put-retention-policy \
  --log-group-name {} --retention-in-days 14

aws logs describe-log-groups \
--query "logGroups[].logGroupName" \
--output text \
| xargs -I {} -n 1 \
 aws logs put-retention-policy \
--log-group-name {} \
--retention-in-days 14

OS : Mac OSX