RH124 - ch03s03

Man pages have a formal format useful as a command reference, but less useful as general documentation. For such documents, the GNU Project developed a different online documentation system, known as GNU info. Info documents are an important resource on a Red Hat Enterprise Linux system because many fundamental components and utilities, such as the coreutils package and glibc standard libraries, are either developed by the GNU Project or utilize the info document system.

Figure 3.1: pinfo Info document viewer, top directory

Info documentation is structured as hyperlinked info nodes. This format is more flexible than man pages, allowing thorough discussion of complex commands and concepts. Like man pages, info nodes are read from the command line, using either the info or pinfo commands.

Some commands and utilities have both man pages and info documentation; usually, the info documentation will be more in-depth. Compare the differences in tar documentation using man and pinfo:

[student@desktopX ~]$ man tar
[student@desktopX ~]$ pinfo tar

The pinfo info reader is more advanced than the original info command. Designed to match the lynx text web browser keystrokes, it also adds color. Info nodes for a particular topic are browsed with pinfo topic. Enter only pinfo for the info topics directory. New documentation nodes become available in pinfo when their corresponding software packages are installed.

GNU Info vs. man page navigation

The info command uses different navigation keystrokes than does man. The info command was designed to match the keystrokes of the hypertext-aware lynx web browser. Compare the key bindings in the following table:

Table 3.3. pinfo and man, key binding comparison

Navigation	pinfo	man
Scroll forward (down) one screen	PageDown or Space	PageDown or Space
Scroll backward (up) one screen	PageUp or b	PageUp or b
Display the directory of topics	d	-
Scroll forward (down) one half-screen	-	d
Display the parent node of a topic	u	-
Display the top (up) of a topic	HOME	1G
Scroll backward (up) one half-screen	-	u
Scroll forward (down) to next hyperlink	DownArrow	-
Open topic at cursor location	Enter	-
Scroll forward (down) one line	-	DownArrow or Enter
Scroll backward (up) to previous hyperlink	UpArrow	-
Scroll backward (up) one line	-	UpArrow
Search for a pattern	/`string`	/`string`
Display next node (chapter) in topic	n	-
Repeat previous search forward (down)	/ then Enter	n
Display previous node (chapter) in topic	p	-
Repeat previous search backward (up)	-	N
Quit the program	q	q

References

pinfo info (Info: An Introduction)

All Sections

pinfo pinfo (Documentation for 'pinfo')

All Sections

The GNU Project http://www.gnu.org/gnu/thegnuproject.html

pinfo(1) and info(1) man pages

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RH124 Chapter 15 Lab 3: Install zsh Package

VictoriaB97

16 sty 2024

Hello,I am trying to finish up Lab 3 of the Chapter 15 Comprehensive Review Labs in RH124, and when I type in sudo dnf install zsh for the 6th specification of the lab, I get an error message basically saying that it failed to download metadata for the repo 'ansible-2.9-for-rhel-9-x86_64-rpms', and that they could not download repomd.xml. It provided a 404 status code.Can someone please let me know what the problem is, and if there is a current workaround? Thanks.

378

Red Hat System Administration I | Guided Exercise: Explain and Investigate RPM Software Pack

AbeHiero

10 lis 2023

I cannot start the lab with command: lab start software-rpm. I get this error:ModuleNotFoundError: No module named 'rhcsa-classroom'Script software-rpm not in course library rhcsa-classroom Anyone else see this?

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Red Hat System Administration I (RH124)

Haley_Ruccio

19 lip 2023

The first of two courses covering the core system administration tasks needed to manage Red Hat Enterprise Linux serversRed Hat System Administration I (RH124) is designed for IT professionals without previous Linux system administration experience. The course provides students with Linux administration competence by focusing on core administration tasks. This course also provides a foundation for students who plan to become full-time Linux system administrators by introducing key command-line concepts and enterprise-level tools. This course is the first of a two-course series that takes a computer professional without Linux system administration knowledge to become a fully capable Linux administrator. These concepts are further developed in the follow-on course, Red Hat System Administration II (RH134).This course is based on Red Hat® Enterprise Linux 9.0.Course content summaryIntroduce Linux and the Red Hat Enterprise Linux ecosystem.Run commands and view shell environments.Manage, organize, and secure files.Manage users, groups and user security policies.Control and monitor systemd services.Configure remote access using the web console and SSH.Configure network interfaces and settings.Manage software using DNFAudience for this courseThe primary persona is a technical professional with current or pending responsibilities as a Linux enterprise or cloud system administrator.This course is popular in Red Hat Academy, and is targeted at the student who is planning to become a technical professional using Linux.Prerequisites for this courseBasic technical user skills with computer applications on some operating systems are expected.Take our free assessment to gauge whether this offering is the best fit for your skills.Technology considerationsThere are no special technical requirements for this course.This course is not designed for bring your own device (BYOD).Internet access is not required but is recommended so that students can research and browse Red Hat online resources.

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Revision: rh124-7-1b00421