5.4.
Summary
In this chapter we learned how commands can be linked to each
other, and how input from one command can be used as output for
another command.
Input/output redirection is a common task on UNIX and Linux
machines. This powerful mechanism allows flexible use of the
building blocks UNIX is made of.
The most commonly used redirections are > and |. Refer to
Appendix C for an overview of redirection commands
and other shell constructs.
Table 5-1. New commands in chapter 5: I/O redirection
| Command |
Meaning |
| date |
Display time and date
information. |
| set |
Configure shell options. |
| sort |
Sort lines of text. |
| uniq |
Remove duplicate lines from a
sorted file. |
