File Searching in Linux

Step 1
Index your file system with updatedb. This makes a list of files so that later searches won’t have to look in the entire span of directories each time. The process can later be added to a cronjob and happen automatically. Run the Command:
updatedb
 
Step 2
Once the directory has been updated, the way to find the location of a desired file is with locate. An alternative is the find command, which can take a longer time to finish searching the entire system.
locate “name of file”
Filter Results
Narrowing down results with grep can prevent the screen from being filled up with results, as in this case many files contained the term “nx”
Example:
To find where nxclient’s dsa key is hiding.
locate nx | grep key | grep dsa
Output:
/etc/nxserver/client.id_dsa.key
/etc/nxserver/server.id_dsa.pub.key
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