From 788bf9259e92e0a61314b1db6b59fad62820edcb Mon Sep 17 00:00:00 2001
From: E <79379754+oech3@users.noreply.github.com>
Date: Sun, 5 Oct 2025 22:13:03 +0900
Subject: [PATCH] Document how to generate prefixed completions (#8817)

* Document how to generate prefixed completions
---
 README.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/README.md b/README.md
index b273ff3d3..087bf8830 100644
--- a/README.md
+++ b/README.md
@@ -256,6 +256,11 @@ So, to install completions for `ls` on `bash` to
 cargo run completion ls bash > /usr/local/share/bash-completion/completions/ls
 ```
 
+Completion for prefixed `cp` with `uu-` on `zsh` is generated by
+```shell
+env PROG_PREFIX=uu- cargo run completion cp zsh
+```
+
 ### Manually install manpages
 
 To generate manpages, the syntax is: