Add Run A Command With Specific Tool Version as a Mise TIL

README.md

@@ -10,7 +10,7 @@ pairing with smart people at Hashrocket.
 
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-_1617 TILs and counting..._
+_1618 TILs and counting..._
 
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 - [Ruby Operator Lookup](https://www.visualmode.dev/ruby-operators)
@@ -697,6 +697,7 @@ If you've learned something here, support my efforts writing daily TILs by
 - [List The Files Being Loaded By Mise](mise/list-the-files-being-loaded-by-mise.md)
 - [Preserve Color Output For Task Command](mise/preserve-color-output-for-task-command.md)
 - [Read Existing Dot Env File Into Env Vars](mise/read-existing-dot-env-file-into-env-vars.md)
+- [Run A Command With Specific Tool Version](mise/run-a-command-with-specific-tool-version.md)
 
 ### MongoDB
 

mise/run-a-command-with-specific-tool-version.md

@@ -0,0 +1,39 @@
+# Run A Command With Specific Tool Version
+
+Because I'm using `mise` to manage the versions of tools like Node, I can
+execute commands in the context of specific versions. Behind the scenes `mise`
+makes sure I have the necessary tool(s) installed at the desired version(s).
+
+So, [`mise exec` command](https://mise.jdx.dev/cli/exec.html) will default to
+using the latest version of a tool if I haven't been more specific. At the time
+of this writing, for Node, that is v23.
+
+```bash
+$ mise exec node -- node --version
+v23.9.0
+```
+
+To be specific I could specify the major version with `node@23` like so:
+
+```bash
+mise exec node@23 -- npx repomix
+Need to install the following packages:
+repomix@0.2.39
+Ok to proceed? (y) y
+
+...
+```
+
+Or if I wanted to use a different, older version of Node, I could specify that
+as well. We can see it will first install that and then execute the command:
+
+```bash
+$ mise exec node@22 -- npx repomix
+gpg: Signature made Tue Feb 11 04:44:53 2025 CST
+gpg:                using RSA key C0D6248439F1D5604AAFFB4021D900FFDB233756
+gpg: Good signature from "Antoine du Hamel <duhamelantoine1995@gmail.com>" [unknown]
+
+📦 Repomix v0.2.39
+
+...
+```