In terminal:
$ lsof -t -i tcp:80 | xargs killCategory Archives: OS X
Parallels Breaking Wacom
If your Wacom tablet stopped working after you installed Parallels.
Continue readingMac: How to Find Out Which App Is Blocking a Hotkey
If some hotkey doesn’t work for you, it’s likely that it got blocked by some other app in the background.
Continue readingHow to Install Android SDK
Setting up React Native Environment following create-react-native-app.
You have to install development tools first.
That was a very vague error message when installing certain gems. What we need to do is:
NPM: ERRORINUSE
For error:
Error: listen EADDRINUSE :::3042
We just need to kill whatever that’s on the port. Probably the last exit wasn’t clean. Do:
$ lsof -i :3042 // to find out the PID number $ kill -9 PID // kill the process with its PID
Permission Denied for mkdir
Just reclaim ownership of the untamed parent directory, instead of sudo-ing every single time.
Remapping Keys in Sierra
Because of my use of VIM, ESC is much more useful to me than the more easily accessible CapsLock. I’ve always used Seil to switch them, until it started to fail in the new MacOS, Sierra.
After a bit of search, Karabiner solved my problem wonderfully.
1Password Chrome Plugin Not Working
Sometimes it’s because Chrome is in the middle of an update. Even if it doesn’t prompt for restart, go to chrome://help/ and manually restart from there. Simply quitting Chrome and restarting the app might not work.
How To: Combine PDFs on Mac OS X
OS X provides a pretty handy way of combining PDFs in Preview. Go Menu -> View -> Contact Sheet with both files, and drag additional PDF pages onto the first one. However, sometimes it just doesn’t seem to work.