Designed to run on EvenNode, this repository hosts the source code of a 'quick' HTTP server-to-shell wrapper I've made. To interact with it, simply include http://testshell.eu-4.evennode.com as the hostname, followed by any command. Be cognisant that non-zero exit codes will return an HTTP 400 code rather than 200.
An example is placed below, which outputs the number 5 and prints it to the webpage:
http://testshell.eu-4.evennode.com/echo%205This one-liner will list files on the / and /data/app folders, respectively:
http://testshell.eu-4.evennode.com/echo%20%22Main%20directory:%22&&ls%20/&&echo%20%22Current%20directory:%22&&pwd&&ls