SharePoint - Export/Import Subsite

Scenario:

Lets suppose we have two SharePoint 2013 site collections and we want to export a sub-site from one site collection to another using PowerShell, then below is the answer.

Source: http://domain.com/sites/Site1/SubsiteA
Destination: http://domain.com/sites/Site2/SubsiteA 

Solution:

Export: Export-SPWeb "http://domain.com/sites/Site1/SubsiteA" -Path "C:\Temp\Export.cmp"

Import: Import-SPWeb "http://domain.com/sites/Site2/SubsiteA" -Path "C:\Temp\Export.cmp"

Note: All the list, libraries, documents etc will get exported except for the workflows.

Ref: https://technet.microsoft.com/en-us/library/ff607895.aspx
Ref: https://technet.microsoft.com/en-us/library/ff607613.aspx
Ref: https://technet.microsoft.com/en-us/library/ee663490.aspx