iControlREST (11.5) - execute bash command

Try this:

curl -vsk -u 'admin:admin' -H "Content-Type: application/json" -X POST https://192.168.1.252/mgmt/tm/util/bash -d "{\"command\":\"run\",\"utilCmdArgs\":\"-c 'echo "works"'\"}"

You're somewhat limited with what you can do with Bash, for example you couldn't directly execute a binary file like 'ls', but then you could script it and then call the script:

https://devcentral.f5.com/questions/can-icontrol-rest-delete-a-connection