Add List The Installed Version Of A Specific Package as a pnpm TIL

README.md

@@ -10,7 +10,7 @@ pairing with smart people at Hashrocket.
 
 For a steady stream of TILs, [sign up for my newsletter](https://crafty-builder-6996.ck.page/e169c61186).
 
-_1294 TILs and counting..._
+_1295 TILs and counting..._
 
 ---
 
@@ -590,6 +590,7 @@ _1294 TILs and counting..._
 
 - [Execute A Command From The Workspace Root](pnpm/execute-a-command-from-the-workspace-root.md)
 - [Install Command Runs For Entire Workspace](pnpm/install-command-runs-for-entire-workspace.md)
+- [List The Installed Version Of A Specific Package](pnpm/list-the-installed-version-of-a-specific-package.md)
 
 ### PostgreSQL
 

pnpm/list-the-installed-version-of-a-specific-package.md

@@ -0,0 +1,32 @@
+# List The Installed Version Of A Specific Package
+
+`pnpm` is a Node-ecosystem package manager with first-class support for
+monorepos. In a monorepo with many apps and packages that each have their own
+`package.json` file, it can be tricky to know what version of a package is
+installed for a specific app or package.
+
+The `pnpm list` command can help with that. First navigate to a specific app or
+package whose dependencies you want to know about. Then run a command like the
+following, replacing `@trpc/next` with your package of interest.
+
+```bash
+$ pnpm list '@trpc/next'
+Legend: production dependency, optional only, dev only
+
+epic-react /Users/jbranchaud/code/clients/egghead/products/apps/epic-react
+
+dependencies:
+@trpc/next 10.7.0
+```
+
+It tells you the exact version of that dependency that is isntalled for the
+current app/package.
+
+This command can also be used with regex. Let's say you want to know about all
+`next`-related dependencies. You could do the following:
+
+```bash
+$ pnpm list '*next*'
+```
+
+[source](https://pnpm.io/cli/list)