Homebrew: Could not symlink, /usr/local/bin is not writable [closed]

Following Alex's answer I was able to resolve this issue; seems this to be an issue non specific to the packages being installed but of the permissions of homebrew folders.

sudo chown -R `whoami`:admin /usr/local/bin

For some packages, you may also need to do this to /usr/local/share or /usr/local/opt:

sudo chown -R `whoami`:admin /usr/local/share
sudo chown -R `whoami`:admin /usr/local/opt

Rather than running any particular command, I would recommend running brew doctor and taking all warnings seriously. There may be other problems you get stuck at which may not be captured in this question.

Also, as brew gets updated with time, particular commands may or may not remain valid. brew doctor, however, will ensure that you get up to date troubleshooting.

For those who are looking for /usr/local/sbin is not writable error:

UPDATE: It could be /usr/local/someOtherFolderName e.g /usr/local/include. You just need to create that folder with:

• sudo mkdir someOtherFolderName

First create the sbin folder, note that this requires sudo privileges

• cd /usr/local

• sudo mkdir sbin

• sudo chown -R $(whoami) $(brew --prefix)/*

• brew link yourPackageName