Locate
From MEPIS Documentation Wiki
Basic Uses
locate 'x'
where 'x' is any string in the filepath/filename of the file you wish to find on your harddisk.
Options
* can be used for a variant
eg/ *.dat or english*.doc etc...
-i will ignore the case of a search
Note: database must be up-to-date to locate any newly created files, this can be done with the updatedb command.