Searching for a package in Debian

There are useful tool in Debian which manage packages within your system - apt-get and aptitude. However, both of them have one disadvantage - they can't tell which packages contain a file your're looking for. In such a situation one can use a special script called apt-file.

To install:
# apt-get install apt-file

Before the first usage it should create indices:
# apt-file update

And now we can use it:
# apt-file search stdio.h