Note pkg set compliment on Mac

diff --git a/notes-mac.md b/notes-mac.md
index 4a229cb..e0dba32 100644 (file)
--- a/notes-mac.md
+++ b/notes-mac.md
@@ -1,5 +1,13 @@
+Homebrew packages set compliment:
+
+    comm -1 -3 <(brew list | sort) <(./list ./pkgs-brew-install.list | gsed -E 's/[ ]+/\n/g' | sort)
+
+where `gsed` is needed to understand `\n`.
+
+
 Remove quarantine attribute from an app that is from an unidentified developer:
 `xattr -d com.apple.quarantine /Applications/$app.app`
 
+
 Tiling window managers:
 - [yabai](https://github.com/koekeishiya/yabai)