Locating another command or program (whereis command)

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The whereis command locates the source, binary, and manuals sections for specified files. The command attempts to find the desired program from a list of standard locations.

See the following examples:

To find files in the current directory that have no documentation, type the following:
```
whereis -m -u *
```
To find all of the files that contain the name Mail, type the following:
```
whereis Mail
```
The system displays information similar to the following:
```
Mail: /usr/bin/Mail /usr/lib/Mail.rc
```