#!/usr/bin/env python3
"""
Prints the nth line of a file.

This is meant to fill a gap between the Unix utilities ``head`` and
``tail``, which I normally use in one of the following forms:

    $ head -n 5 myfile.txt
    $ tail -n 5 myfile.txt

which print the first/last 5 lines of a file, respectively.

This command fills the gap -- it gets the nth line of a file, e.g. this
prints the 100th line of the file:

    $ body -n 100 myfile.txt

"""

import argparse
import subprocess


if __name__ == "__main__":
    parser = argparse.ArgumentParser()

    parser.add_argument("-n", required=True, dest="lineno", type=int)
    parser.add_argument("PATH")

    args = parser.parse_args()

    for lineno, line in enumerate(open(args.PATH), start=1):
        if lineno == args.lineno:
            print(line, end="")
            break