npm list -g --depth=0
+-- [email protected]
+-- [email protected]
+-- [email protected]
+-- [email protected]
+-- [email protected]
+-- [email protected]
+-- [email protected]
+-- [email protected]
+-- [email protected]
+-- [email protected]
+-- [email protected]
`-- [email protected]
To find out which packages need to be updated, you can use npm outdated -g --depth=0
To update all global packages, you can use npm update -g