CODEWITHSUNDEEP
pythoncommand-line-arguments
CountDOOKU
CountDOOKU

Reputation: 289

What are command line arguements and what are they use for?

I came across this "command line arguments" thing while reading a coding book. Can someone please explain what is it, what is it for and when do I need it?

Upvotes: 0

Views: 81

Answers (2)

Yash
Yash

Reputation: 3576

Python supports the creation of programs that can be run on the command line, completely with command-line arguments.

Example:

import sys
for x in sys.argv:
     print("Argument: ", x)

Running:

python demo.py Hey Bye

Output:

Argument:  demo.py
Argument:  Hey
Argument:  Bye

Upvotes: 1

Standard
Standard

Reputation: 1512

you can always start a python code from the console, like so:

python myCode.py

Now sometimes you want to tell you programs some further infos, then you would type something like:

python myCode.py name=George

In your code you can read those data and use them.

It's a very easy way to change a programs behaviour for users, admins and so one without changing the code.

Upvotes: 1

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