Finding Files

Command	Description	Usage
find	Finds based on criteria, can be slow but usually finds what you want.	find /directory -name "*.txt"
locate	Search for filenames and get a return of programs that use this file.	locate xterm
which	Searches a path only, and returns the first result unless used with -a	which mysqld which -a file.txt
whereis	Searches restricted locations (bin/lib, etc) and does not find you average user created files.	whereis php.ini