Mac: How to unlock multiple files

I had a new SSD disk on my mac and a few files got a lock icon on them. It’s possible to do a right click and untick the lock box but that’s slow process. Here is the command line for it

How to unlock multiple files on mac using terminal

1. Open Terminal (Launch /Applications/Utilities/Terminal)
2. Copy & paste this command at the prompt

chflags -R nouchg ~/Documents

3. Press return.

You can also use different location, for instance:
chflags -R nouchg ~/Downloads

Hope that helps.