locate — Quick search for files
Summary :
Locate provides a secure way to index and quickly search for files on your system. The index database to make searching faster and file permissions and ownership info will give the security.
Example:
$ locate myfile — Locate myfile in the DB and Print the path.
$ locate -i MyFile — Same as above. But Case insensitive.
$ locate -q myfile — Run in Quiet Mode.
$ locate -n 10 myfile — Limit the no. of results shown to 10.
# locate -U mydir -o myDB — Create index DB starting at path mydir and store the index file in myDB.
Read: man locate