如何用sed或awk删除每行中'('至行尾的内容？

Hey there, here’s a straightforward breakdown of how to use Markdown to format your content, with examples to make it crystal clear:

• Headings: Use number signs (#) to create different heading levels. The more # you use, the smaller the heading:
  • # Big Main Heading → # Big Main Heading
  • ## Subheading → ## Subheading
  • ### Even Smaller Heading → ### Even Smaller Heading
• List Items: Start each entry with a dash (-). For nested lists, just indent sub-items with a couple of spaces or tabs—simple as that!
• Text Emphasis: Wrap text with asterisks (*) to make it stand out:
  • Single asterisks give you italicized text (*italicized text*)
  • Double asterisks make text bold and eye-catching (**bold text**)
• Code & Commands: Surround any code snippets or terminal commands with backticks (`). For longer code blocks, use three backticks before and after to keep formatting intact:

  // Example Python function
  def say_hello(name):
      print(f"Hello, {name}!")
  

• Quoted Text: Prepend lines with a greater-than sign (>). For nested quotes, add another >:

  This is a regular quoted paragraph.

  This is a quote nested inside the first one!

• Links: Format links like this: [Display Text](Web Address). For example, [Visit Example Site](https://example.com) turns into a clickable link.
• Images: To add an image, use ![Alt Text](Image URL) (don’t skip the exclamation mark at the start!). The alt text describes the image for accessibility, like if someone uses a screen reader or the image fails to load.

内容的提问来源于stack exchange，提问作者sungjun cho