prog-exec

This tool is for making it easier and relatively safe to pull scripts from
the internet and execute them. The tool will pull the script, check the hash
matches what is expected, and allow you to read it before choosing to execute
it. Thus if the script gets tampered with and deosn't match your expected
hash, it will not execute.
More info can be found here: http://blog.programster.org/introducing-prog-exec/