Szathmáry László honlapja @ DEIK | Nim2 / The simplest way

Here is the simplest way to work with command-line arguments. I found this solution after the previous two ways.

import std/os

proc commandLineParams(): seq[string]

"This is a convenience proc which returns the command line parameters. This returns only the parameters. If you want to get the application executable filename, call getAppFilename()." (source)

import std/strformat # &"Hello {name}!"
import std/os

echo getAppFilename()
echo getAppFilename().extractFilename()

echo "---"

let args = commandLineParams()

for i, arg in args:
echo &"args[{i}]: {arg}"

Output:

$ ./a.out aa bb 42 END
/home/jabba/Dropbox/nim/Nim-2026/a66-command-line-arguments/simplest/a.out
a.out
---
args[0]: aa
args[1]: bb
args[2]: 42
args[3]: END