Today evening, my colleague was searching for a header file (errno.h) using nautilus in Ubuntu. He was waiting for his search to complete and making fun of the gnome icon doing animation. He waited for another 15 minutes ...
But, still nautilus kept on searching ... not a single result. Then I offered him my help, by opening command line.
and instantly, it displayed all the files to the disbelief of my colleague
So do you want to search system files like that instantly? Use locate command
locate <system filename you want to search >
say for e.g I want to find javadoc, index.html path to open javadoc locally, here is how I search
locate index.html | grep java
Invoke updatedb as rootTo keep your locate db always updated which is maintained as an index for that superfast search