How to move screen without moving cursor in Vim?

In Vim, several commands allow you to scroll the screen without moving the cursor. This is particularly useful for viewing the code context without altering your current editing position. Here are some commonly used commands:

1. Ctrl-Y and Ctrl-E:

   • Using Ctrl-Y scrolls the screen up by one line without moving the cursor.
   • Using Ctrl-E scrolls the screen down by one line without moving the cursor.

   These commands are ideal for making minor adjustments to the screen display, enabling you to view code or text immediately adjacent to the cursor.

2. Ctrl-U and Ctrl-D:

   • Ctrl-U scrolls the screen up by half a screen.
   • Ctrl-D scrolls the screen down by half a screen.

   These commands are useful for larger screen scrolling, making quick browsing of code or documents efficient.

3. Ctrl-B and Ctrl-F:

   • Ctrl-B (backward) scrolls the screen up by one full screen.
   • Ctrl-F (forward) scrolls the screen down by one full screen.

   These commands are very useful when you need to quickly navigate to different sections of a document.

4. zz, zt, zb:

   • zz centers the current line in the window without moving the cursor.
   • zt (top) moves the current line to the top of the window.
   • zb (bottom) moves the current line to the bottom of the window.

   These commands not only keep the cursor position unchanged but also help you adjust the view for better visibility of the current code line.

Using these commands can significantly enhance productivity and comfort when working with Vim. For example, when writing a long function or document, I often use Ctrl-D and Ctrl-U to view context without losing my current position. This allows me to maintain a smooth thought flow and improve work efficiency.