IT 244: Introduction to Linux/Unix
Class 21

Tips and Examples


Review


New Material


Microphone

Class Quiz

You can connect to Gradescope to take weekly graded quiz today during the last 15 minutes of the class.

Once you start the quiz you have 15 minutes to finish it.

You can only take this quiz today.

There is not makeup for the weekly quiz because Gradescope does not permit it.

Homework 10

Homework 10 is posted here.

It is due this coming Sunday at 11:59 PM.

Questions

Are there any questions before I begin?

Tips and Examples

Don't Use Commands You Copied from Google

An Alias for Logging into pe15

Review

History

Using the History Mechanism

Using fc to Edit and Run an Old Command

The Readline Library

Readline Completion

Pathname Completion

Command Completion

Variable Completion

Aliases

Single Quotes Versus Double Quotes in Aliases

Functions

Attendance

New Material

Bash Features and Options

Processing the Command Line

History Expansion

Alias Substitution

Brace Expansion

Tilde, ~, Expansion

Parameter and Variable Expansion

Arithmetic Expansion

Command Substitution

Word Splitting

Pathname Expansion

Process Substitution

Class Exercise

Class Quiz