executing a python file and bash script in javascript.

[lilzz]

In php, you can do
exec('sudo python test.py');

I am not sure in how to do that in javascript

Also how to give out bash script command in javascript.

[gkreidl]

You can't, for security reasons.
PHP is running on the server side, jvascript (usually) on the clients side, If javascript could access files or even execute programs, it would open the door to everyone modify your system.

[ghans]

That is not possible in browsers because it would be a massive security risk. Under node.js , it is possible , though :

http://nodejs.org/api/child_process.html

ghans