Permission denied while creating a symbolic link

Question

I am installing mysql using homebrew for Mac OS X. Once the installation completes these options are given in the terminal:

To connect:
    mysql -uroot

To have launchd start mysql at login:
    ln -sfv /usr/local/opt/mysql/*.plist ~/Library/LaunchAgents
Then to load mysql now:
    launchctl load ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
Or, if you don't want/need launchctl, you can just run:
    mysql.server start

So what I would like to do is have mysql started at login but when I enter the command I get permission denied like so:

$ ln -sfv /usr/local/opt/mysql/*.plist ~/Library/LaunchAgents

ln: /Users/xxxxxxxxxxxxxx/Library/LaunchAgents/homebrew.mxcl.mysql.plist: Permission denied

Any suggestions as to why this may be occuring?

Answer 1

Did you try sudo?

$ sudo ln -sfv /usr/local/opt/mysql/*.plist ~/Library/LaunchAgents
  ^^^^

Answer 2

I have similar issue while trying to run ln -s /Applications/ngrok ngrok. It returns permission denied. That means you need to allow Administrator to delegate a user to perform the operation. By prepending sudo will give that privilege and the system will prompt you for administrator password. sudo ln -s /Applications/ngrok ngrok

For more information on sudo.