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file 抽出

Last updated at Posted at 2024-04-19
title.rb

import os
import csv

# 対象のディレクトリパスを設定
directory_path = 'D:/'

# 出力ファイル名
output_file = 'file_list.csv'

# 対象のディレクトリ内のファイルをリストアップ
file_names = []
for filename in os.listdir(directory_path):
    if filename.endswith('.csv'):
        # 拡張子 '.out' を除いたファイル名をリストに追加
        file_names.append(filename[:-4])

# CSVファイルに書き出し
with open(output_file, mode='w', newline='') as file:
    writer = csv.writer(file)
    for name in file_names:
        writer.writerow([name])  # CSVの各行にファイル名を出力

print(f"{len(file_names)} files found and listed in {output_file}.")

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