what is the location Trash(recycle bin) on ubuntu?

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http://askubuntu.com – Where do i find the trash folder location in my file system? I am login as a non-root user; have searched in my home directory with "-a" switch with ls command but couldn't find anything related to trash; though could see some hidden files/directories. On the other hand on the GUI, there is a folder called Trash which has all the files deleted. (HowTos)