New terms and their definitions: Course module Android: a mobile operating system based on Linux Application

Prompt: A prompt shows you which directory you’re currently in
R
Regular expression: A pattern matching language that describes words, phrases, or more complicated patterns; regular expressions are used to help you do advanced pattern based selection
Relative path: It is a path from your current directory
Root directory: A parent directory for all other directories in a file system
S
Shell: A shell is a command line interpreter for Linux
Standard error (stderr): A data stream that redirect the output of error messages in a different output stream. It works both in Linux and Windows
Standard In (stdin): A data stream in which the input that you provide through the keyboard goes to the standard in stream of the process that you're interacting with. It works both in Linux and Windows
Standard out (stdout): A data stream that when a process creates output, it adds data to the standard out stream, which flows out of the process. It works both in Linux and Windows
Stdin, stdout, stderr: Three data streams created when you launch a Linux command
Subdirectories: A directory below or at a deeper level in the directory hierarchy
T
Tab completion: A way to auto-complete a command or file names and directories
W
Wildcard: A character that is used to help select files based on a certain pattern
Windows Search service: A service that indexes files on your computer by looking through them on a schedule

Module 3 Glossary

New terms and their definitions: Course 3 Week 3

App Store apps: A Package Manager that acts as a repository
App store repository: A app store service that also acts as a repository
App stores: A central managed marketplace for app developers to publish and sell mobile apps
APPX: An APPX is another way to package contents of a file to act like a unit of distribution