show and hide dot files in Finder of OS X El Capitan

Fish

Run the following code in fish shell. Then it works as a charm. :-)

function showFiles
        defaults write com.apple.finder AppleShowAllFiles YES
        killall Finder /System/Library/CoreServices/Finder.app
end

funcsave showFiles

function hideFiles
        defaults write com.apple.finder AppleShowAllFiles NO
        killall Finder /System/Library/CoreServices/Finder.app
end
    
funcsave hideFiles

:joy:

zsh

Add the following code to ~/.zshrc

alias showFiles='defaults write com.apple.finder AppleShowAllFiles YES; killall Finder /System/Library/CoreServices/Finder.app'
alias hideFiles='defaults write com.apple.finder AppleShowAllFiles NO; killall Finder /System/Library/CoreServices/Finder.app'

then run source ~/.zshrc

bash

Add the code the same as zsh above to ~/.bashrc. Then run source ~/.bashrc

Then, if you want to show hidden files in Finder, just execute showFiles in Terminal. If you want to hide hidden files, use hideFiles instead.

:joy: