The unzip command without any option will extract all of the contents of a zip file to the present working directory.
Unzip to a directory
The -d option can be used to unzip the contents to a specific directory.
unzip example.zip -d /path/to/directory
Unzip multiple files
Here is how you can unzip all of the files ending in .zip in the present working directory.
Let's say you want to unzip the contents of example.zip to the /opt directory, and the /opt directory has the following permissions. In this example, only root has permission to write to the opt directory.
drwxr-xr-x. 16 root root 217 Nov 13 00:45 /opt
If you attempt to unzip example.zip to the /opt directory, and you are not root, something like this will be returned.
checkdir error: cannot create /opt/foo Permission denied