Red Hat RHCSA 9 Cert Guide: EX200

Appendix C

Memory Tables

Chapter 2

Table 2-2 Standard Input, Output, and Error Overview

Name	Default Destination	Use in Redirection	File Descriptor Number
	Computer keyboard	< (same as 0<)	0
	Computer monitor	> (same as 1>)	1
STDERR		2>	2

Table 2-3 Common Bash Redirectors

Redirector	Explanation
(same as 1>)	Redirects STDOUT. If redirection is to a file, the current contents of that file are overwritten.
(same as 1>>)	Redirects STDOUT in append mode. If output is written to a file, the output is appended to that file.
	Redirects STDERR.
	Redirects STDERR to the same destination as STDOUT. Notice that this has to be used in combination with normal output redirection, as in ls whuhiu > errout 2>&1.
(same ...