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Understand and use essential tools

Access a shell prompt and issue commands with correct syntax

05

Use input-output redirection (>, >>, |, 2>, etc.)

11

Use grep and regular expressions to analyze text

09, 31, 61

Access remote systems using SSH

44

Log in and switch users in multiuser targets

17

Archive, compress, unpack, and uncompress files using tar, star, gzip, and bzip2

38, 64

Create and edit text files

10

Create, delete, copy, and move files and directories

06 - 08

Create hard and soft links

08

List, set, and change standard ugo/rwx permissions

20

Locate, read, and use system documentation including man, info, and files in /usr/share/doc

05


Create simple shell scripts

Conditionally execute code (use of: if, test, [], etc.)

28, 29

Use Looping constructs (for, etc.) to process file, command line input

30, 32

Process script inputs ($1, $2, etc.)

27

Processing output of shell commands within a script

29 - 32

Processing shell command exit codes

27 - 32


Operate running systems

Boot, reboot, and shut down a system normally

64

Boot systems into different targets manually

64

Interrupt the boot process in order to gain access to a system

48

Identify CPU/memory intensive processes and kill processes

15, 16

Adjust process scheduling

50

Manage tuning profiles

51

Locate and interpret system log files and journals

36

Preserve system journals

36

Start, stop, and check the status of network services

35

Securely transfer files between systems

56


Configure local storage

List, create, delete partitions on MBR and GPT disks

22

Create and remove physical volumes

25

Assign physical volumes to volume groups

25

Create and delete logical volumes

25

Configure systems to mount file systems at boot by universally unique ID (UUID) or label

24

Add new partitions and logical volumes, and swap to a system non-destructively

22, 25, 49


Create and configure file systems

Create, mount, unmount, and use vfat, ext4, and xfs file systems

24

Mount and unmount network file systems using NFS

57, 59

Extend existing logical volumes

25

Create and configure set-GID directories for collaboration

20

Configure disk compression

40

Manage layered storage

52

Diagnose and correct file permission problems

20


Deploy, configure, and maintain systems

Schedule tasks using at and cron

37

Start and stop services and configure services to start automatically at boot

34, 35

Configure systems to boot into a specific target automatically

34

Configure time service clients

54

Install and update software packages from Red Hat Network, a remote repository, or from the local file system

47

Work with package module streams

47

Modify the system bootloader

33


Manage basic networking

Configure IPv4 and IPv6 addresses

43, 55

Configure hostname resolution

43

Configure network services to start automatically at boot

34

Restrict network access using firewall-cmd/firewall

46


Manage users and groups

Create, delete, and modify local user accounts

19

Change passwords and adjust password aging for local user accounts

19

Create, delete, and modify local groups and group memberships

19

Configure superuser access

18


Manage security

Configure firewall settings using firewall-cmd/firewalld

46

Create and use file access control lists

20, 58

Configure key-based authentication for SSH

44

Set enforcing and permissive modes for SELinux

45

List and identify SELinux file and process context

45

Restore default file contexts

45

Use boolean settings to modify system SELinux settings

45

Diagnose and address routine SELinux policy violations

45, 61


Manage containers

Find and retrieve container images from a remote registry

63

Inspect container images

63

Perform container management using commands such as podman and skopeo

63

Perform basic container management such as running, starting, stopping, and listing running containers

63

Run a service inside a container

63

Configure a container to start automatically as a systemd service

63

Attach persistent storage to a container

63