Ubuntu Unleashed 2019 Edition: Covering 18.04, 18.10, 19.04

Command-Line Master Class, Part 2

In Chapter 11, “Command-Line Master Class, Part 1,” you learned a number

of useful commands. This chapter follows up with information about how to
link commands together to create new command groups. It also looks at the
three most popular Linux text editors: vim, emacs, and nano, as well as the
sed and awk tools. This chapter also covers more commands and command-
line interface (CLI) tools to help you become successful and efficient. Let’s
jump right in.

IN THIS CHAPTER

Redirecting Output  and Input

stdin,  stdout, stderr, and Redirection

Comparing   Files

Limiting    Resource    Use and Job Control

Combining   Commands

Executing   Jobs    in  Parallel

Using   Environment Variables

Using   Common  Text    Editors

Working with    Compressed  Files

Using   Multiple    Terminals   with    byobu

Doing   a   Polite  System  Reset   Using   REISUB

Fixing  an  Ubuntu  System  that    Will    Not Boot

Tips    and Tricks

References

Redirecting Output and Input

Sometimes, the output of a command is too long to view on one screen. At
other times, there might be an advantage to preserving the output as a file,
perhaps to be edited later. You can’t do that using cat or less, at least not