How to check if running as root in a bash script

How to check if running as root in a bash script

bash shell root

bash

Root user/sudo equivalent in Cygwin?

bash cygwin root sudo

bash

Why do I need Root privilege to do `git branch -a`?

bash git root git-branch sudo

bash

Allowing PHP to execute a bash script with root permissions

php bash exec root

bash

Stop being root in the middle of a script that was run with sudo

linux bash shell root sudo

bash