How do I open the current Ex command in the command-line window for full-screen editing?

Q: How do I open the current Ex command in the command-line window for full-screen editing?

`: ` Long Ex commands are easy to mistype when you edit inline on a single command line. Vim lets you promote the current command to the command-line window, where you can use full Normal-mode editing, history navigation, and text objects before executing. This is a high-leverage workflow when building complex substitutions, global commands, or pipelines joined with `|`. ## How it works ```vim : ``` - `:` starts Ex command-line entry - ` ` opens the **command-line window** (`q:`) with the current command loaded - Inside that window, you can edit like a normal buffer (motions, operators, search, macros) - Press ` ` on a line to execute that command ## Example Suppose you are drafting a complex command such as: ```text :%s/\\v /\\=toupper(submatch(1))/g | update ``` Instead of fixing mistakes in cramped inline mode, press `: `, refine it in the command-line window, then hit ` ` to run it cleanly. ## Tips - Use `q:` to open command history directly, even when not actively entering `:` - You can edit previous commands and rerun them from the same window - Treat it as your "scratchpad" for risky one-off commands before execution

Question

Accepted Answer

`:` Long Ex commands are easy to mistype when you edit inline on a single command line. Vim lets you promote the current command to the command-line window, where you can use full Normal-mode editing, history navigation, and text objects before executing. This is a high-leverage workflow when building complex substitutions, global commands, or pipelines joined with `|`. ## How it works ```vim : ``` - `:` starts Ex command-line entry - `` opens the **command-line window** (`q:`) with the current command loaded - Inside that window, you can edit like a normal buffer (motions, operators, search, macros) - Press `` on a line to execute that command ## Example Suppose you are drafting a complex command such as: ```text :%s/\v<(foo|bar)>/\=toupper(submatch(1))/g | update ``` Instead of fixing mistakes in cramped inline mode, press `:`, refine it in the command-line window, then hit `` to run it cleanly. ## Tips - Use `q:` to open command history directly, even when not actively entering `:` - You can edit previous commands and rerun them from the same window - Treat it as your "scratchpad" for risky one-off commands before execution

Answer

Explanation

How it works

Example

Tips

Related Tricks

How do I fill quickfix from ripgrep output without leaving Vim?

How do I reuse my last search pattern literally in :substitute without re-escaping it?

How do I strip trailing whitespace without clobbering my last search pattern?

How do I inspect only Ex command history so I can quickly rerun a complex command?

How do I reindent the whole buffer without adding jumplist entries?