From a46e636654b62204c995df26d8a0a591bb4edfd4 Mon Sep 17 00:00:00 2001
From: Hatter Jiang <jht5945@gmail.com>
Date: Sun, 12 Apr 2026 16:01:25 +0800
Subject: [PATCH] =?UTF-8?q?=F0=9F=94=A7=20Update=20script=20metadata=20and?=
 =?UTF-8?q?=20enhance=20howto.ts=20with=20command=20extraction=20and=20exe?=
 =?UTF-8?q?cution=20logic?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 script-meta-v2.json     |  6 +++---
 single-scripts/howto.ts | 38 +++++++++++++++++++++++++++++++++++---
 2 files changed, 38 insertions(+), 6 deletions(-)

diff --git a/script-meta-v2.json b/script-meta-v2.json
index ca965f8..bf3851f 100644
--- a/script-meta-v2.json
+++ b/script-meta-v2.json
@@ -153,12 +153,12 @@
   },
   "howto.ts": {
     "script_name": "howto.ts",
-    "script_length": 1225,
-    "script_sha256": "97b7f0efd97b774c70000a5cb56f9115df0e9473cc2018b0404f7556bdba0e83",
+    "script_length": 2121,
+    "script_sha256": "0c78b2ca3729ffb4fbe92c46f8bc15e62dd9224670db5cc0fe9efccf29759958",
     "script_full_url": "https://git.hatter.ink/hatter/ts-scripts/raw/branch/main/single-scripts/howto.ts",
     "single_script_file": true,
     "publish_time": 1775973075081,
-    "update_time": 1775973377013
+    "update_time": 1775980874679
   },
   "init-cheatsheet.ts": {
     "script_name": "init-cheatsheet.ts",
diff --git a/single-scripts/howto.ts b/single-scripts/howto.ts
index 353a8b4..bd0ea0c 100755
--- a/single-scripts/howto.ts
+++ b/single-scripts/howto.ts
@@ -1,7 +1,7 @@
 #!/usr/bin/env runts -- --allow-all
 
 import {parseArgs} from "jsr:@std/cli/parse-args";
-import {exit, log, ProcessBar,} from "https://script.hatter.ink/@67/deno-commons-mod.ts";
+import {execCommandShell, exit, log, ProcessBar, term,} from "https://script.hatter.ink/@67/deno-commons-mod.ts";
 import {howto} from "https://script.hatter.ink/@1/deno-ai-mod.ts";
 
 async function main() {
@@ -33,6 +33,38 @@ howto.ts 'MESSAGE'   - generate command line for MESSAGE
         },
     );
     log.success(`AI howto command line message: \n${summary}`);
+
+    try {
+        const commandLine = extractCommand(summary);
+        console.log(
+            "Command line: ",
+            term.auto(`[green][[[${commandLine}]]][/]`),
+        );
+
+        if (confirm("Execute this command?")) {
+            const status = await execCommandShell("sh", ["-c", commandLine]);
+            exit(status);
+        }
+    } catch (e) {
+        log.error("Extract command line failed", e);
+    }
+}
+
+function extractCommand(summary: string): string {
+    const lines = summary.split(/\r?\n/);
+    const sb = [];
+    let inCode = false;
+    for (const line of lines) {
+        if (inCode) {
+            if (line.startsWith("```")) {
+                return sb.join("\n");
+            }
+            sb.push(line);
+        } else if (line.startsWith("```")) {
+            inCode = true;
+        }
+    }
+    throw new Error("Command line not found");
 }
 
 main().catch((err) => {
@@ -40,5 +72,5 @@ main().catch((err) => {
     process.exit(0);
 }).then(() => process.exit(0));
 
-// @SCRIPT-SIGNATURE-V1: yk-r1.ES256.20260412T135613+08:00.MEUCIQDbJGYgxtAv1d6Vrmyj
-// vQDEJGFUuZuH1UQOYQhWRzN69wIgS8tw92nMpF5TLQy/qS4uk7w7d8iY8rmT6DR+V3jg0lM=
+// @SCRIPT-SIGNATURE-V1: yk-r1.ES256.20260412T160105+08:00.MEQCIGSMGJYgv+Am7EZUBj9N
+// B1c1seTE1jc48Z7CZiKn0d23AiAdmw6UTSXRMH/BQKbhuVoFs6GiBo783QxnCXYT4TWf8A==