Mac Sierra系统下无法解压并打开bz2格式Reddit月度评论文件求助

Hey there, let's sort out this issue you're having with the Reddit comment files on Mac Sierra. First off, that extensionless RC_2005-12 file you're seeing isn't broken—it's actually a plain text JSON file where each line represents a single Reddit comment's data. The reason it won't open nicely is just because it lacks the .json extension to tell macOS how to handle it. Here's how to fix this and work with the file properly:

1. 给文件添加正确的扩展名 #

• 找到解压后的RC_2005-12文件，右键点击它并选择「显示简介」
• 在弹出的窗口里，找到「名称与扩展名」区域。如果「隐藏扩展名」是勾选状态，先取消这个勾选（不然你看不到/改不了扩展名）
• 把文件名修改为RC_2005-12.json，系统会弹出确认框，点击「使用.json」即可

2. 选择合适的方式打开文件 #

Keep in mind these Reddit monthly comment files are often massive (gigabytes in size), so avoid using Mac's default TextEdit for opening them—it'll likely freeze or crash. Instead, use one of these options:

• 终端快速查看：打开终端，导航到文件所在目录（比如cd ~/Downloads），然后输入 head RC_2005-12.json 来查看前几行内容，或者 less RC_2005-12.json 分页浏览（按q退出）
• 专业文本编辑器：Tools like Sublime Text or VS Code work better for large files. For VS Code, install a plugin like Large File Viewer to handle the size smoothly
• 数据分析工具：If you're planning to process the comment data, use Python's pandas library. Run this code to load the file correctly (since it's line-delimited JSON):

  import pandas as pd
  df = pd.read_json('RC_2005-12.json', lines=True)
  

3. 直接用终端解压（替代The Unarchiver） #

If you prefer, you can skip The Unarchiver and handle the whole process in Terminal:

• Open Terminal and navigate to the folder with your .bz2 file: cd /path/to/your/file
• Run the bunzip2 command to decompress: bunzip2 RC_2005-12.bz2
• Once done, you'll have the extensionless file. You can rename it directly in Terminal too: mv RC_2005-12 RC_2005-12.json

内容的提问来源于stack exchange，提问作者Phani.m