See also: Why is using 'eval' a bad practice? to understand the critical security risks created by using eval or exec on untrusted input (i.e.: anything that is even partially under the user's control, rather than the …

After reading the Bash man pages and with respect to this post, I am still having trouble understanding what exactly the eval command does and which would be its typical uses. For example, if we do...

eval is a bash-builtin and is documented in the man page of bash. So just type "man bash" and search for the appropriate section for eval. This applies for other bash-builtins, too.

eval: This is very powerful, but is also very dangerous if you accept strings to evaluate from untrusted input. Suppose the string being evaluated is "os.system ('rm -rf /')" ? It will really start deleting all the …

The eval function is a powerful and easy way to dynamically generate code, so what are the caveats?

Oct 12, 2018 · I've been looking at dynamic evaluation of Python code, and come across the eval() and compile() functions, and the exec statement. Can someone please explain the difference between …

May 22, 2017 · Everyone says eval is EVIL (as in bad) and slow (as I have found), but I can't really do anything else - the server simply pulls the data out the database and pushes to the browser.

Dec 3, 2009 · My Spider Sense warns me that using eval() to parse incoming JSON is a bad idea. I'm just wondering if JSON.parse() - which I assume is a part of JavaScript and not a browser-specific …

May 11, 2016 · Because eval is literally unsafe. Eval in every language means "take this string and execute it code." Sure, you may be using eval in a semi-safe way, but as long as you allow it at all, you …

You can execute eval with a particular context, where this === theContext you pass in ({ neek: true } for example). The trick is you have to .call another function which then calls eval, you cannot .call eval …