accept command line argument

[snippsat]

I would advice a library for building CLI applications,over using sys.argv.
Typer is easy to use and really good.
Here a example with your code.

# file_rm.py
from pathlib import Path
import sys
import os
import typer

app = typer.Typer()

@app.command()
def remove_files(folderpath: str, files: str):
    '''Remove files based on patrtern given'''
    os.chdir(folderpath)
    collection = []
    collection = files.split(",")
    for coll in collection:
        files = Path.cwd().glob(f"*{coll}*")
        for file in files:
            print(file) # Test print before delete
            #file.unlink(missing_ok=True)

if __name__ == "__main__": 
    app()

So now will get help generated automatic.

λ python file_rm.py --help

 Usage: file_rm.py [OPTIONS] FOLDERPATH FILES

 Remove files based on patrtern given

┌─ Arguments ─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│ *    folderpath      TEXT  [default: None] [required]                                                                                                                       │
│ *    files           TEXT  [default: None] [required]                                                                                                                       │
└─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
┌─ Options ───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│ --install-completion        [bash|zsh|fish|powershell|pwsh]  Install completion for the specified shell. [default: None]                                                    │
│ --show-completion           [bash|zsh|fish|powershell|pwsh]  Show completion for the specified shell, to copy it or customize the installation. [default: None]             │
│ --help                                                       Show this message and exit.                                                                                    │
└─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘

Test that his work.

G:\div_code\answer\mb
# Now give argument after file
λ python file_rm.py C:/test_data ab,xy,py,cd,ef,gh
C:\test_data\ab11.tx