I wish to have the command
locate in ubuntu 12.04 (which is used for finding files. I believe there is such a command but I cannot see it in ubuntu 12.04 Is it part of any package?
sudo apt-get install mlocate should install the 'locate' command.
mlocate maintains a database of all your files and is re-indexed once a day by default. If you want it to re-index immediately then run
sudo updatedb from the command line.
If you get a
cannot stat error when you run
locate, then you need to run
sudo updatedb to populate the database, just as if you wanted to re-index immediately.