feat: add dryRun to dedupe

3 files changed, 4 insertions, 2 deletions

diff --git a/docs/content/cli-commands/npm-dedupe.md b/docs/content/cli-commands/npm-dedupe.md
index a146885a0..e0493f5e2 100644
--- a/docs/content/cli-commands/npm-dedupe.md
+++ b/docs/content/cli-commands/npm-dedupe.md
@@ -60,6 +60,8 @@ Modules
 Note that this operation transforms the dependency tree, but will never
 result in new modules being installed.
 
+Using `npm find-dupes` will run the command in dryRun mode.
+
 ### See Also
 
 * [npm ls](/cli-commands/ls)
diff --git a/lib/dedupe.js b/lib/dedupe.js
index 51947c792..b82792cbe 100644
--- a/lib/dedupe.js
+++ b/lib/dedupe.js
@@ -10,7 +10,7 @@ const completion = (cb) => cb(null, [])
 const cmd = (args, cb) => dedupe().then(() => cb()).catch(cb)
 
 const dedupe = async () => {
-  const { dryRun } = npm.flatOptions
+  const dryRun = npm.command.match(/^find/) || npm.flatOptions.dryRun
   const where = npm.prefix
   const arb = new Arborist({
     ...npm.flatOptions,
diff --git a/lib/npm.js b/lib/npm.js
index dbba2f788..565ef9b4d 100644
--- a/lib/npm.js
+++ b/lib/npm.js
@@ -111,7 +111,7 @@
         npm.config.set('long', true)
       }
 
-      npm.command = actualCommand
+      npm.command = c
       npm.flatOptions = require('./config/flat-options.js')(npm)
       require('./config/set-envs.js')(npm)