CompTIA Linux+ Powered by Linux Professional Institute Study Guide. Richard Blum

Chapter 4 )

      ● Create links

      ● Identify hard and/or soft links

      ● Copying versus linking files

      ● Use links to support system administration tasks

      ● This utility is covered in this objective: ln, ls

      104.7 Find system files and place files in the correct location ( Chapter 4 )

      ● Understand the correct locations of files under the FHS

      ● Find files and commands on a Linux system

      ● Know the location and purpose of important files and directories as defined in the FHS

      ● The following is a partial list of the files, terms, and utilities covered in this objective: find, locate, updatedb, whereis, which, type, /etc/updatedb.conf

      Exam LX0-104 Objectives

      The LX0-104 exam comprises six topics (105–110), each of which contains three or four objectives. The six major topics are as follows:

      105 Shells, Scripting, and Data Management

      105.1 Customize and use the shell environment ( Chapter 9 )

      ● Set environment variables (e.g., PATH) at login or when spawning a new shell

      ● Write bash functions for frequently used sequences of commands

      ● Maintain skeleton directories for new user accounts

      ● Set command search path with the proper directory

      ● The following is a partial list of the files, terms, and utilities covered in this objective: source, /etc/bash.bashrc, /etc/profile, env, export, set, unset, ∼/.bash_profile, ∼/.bash_login, ∼/.profile, ∼/.bashrc, ∼/.bash_logout, function, alias, lists

      105.2 Customize or write simple scripts ( Chapter 9 )

      ● Use standard sh syntax (loops, tests)

      ● Use command substitution

      ● Test return values for success or failure or other information provided by a command

      ● Perform conditional mailing to the superuser

      ● Correctly select the script interpreter through the shebang (#!) line

      ● Manage the location, ownership, execution, and SUID rights of scripts

      ● The following is a partial list of the files, terms, and utilities covered in this objective: for, while, test, if, read, seq, exec

      105.3 SQL data management ( Chapter 9 )

      ● Use of basic SQL commands

      ● Perform basic data manipulation

      ● The following is a partial list of the files, terms, and utilities covered in this objective: insert, update, select, delete, from, where, group by, order by, join

      106 User Interfaces and Desktops

      106.1 Install and configure X11 ( Chapter 6 )

      ● Verify that the video card and monitor are supported by an X server

      ● Awareness of the X font server

      ● Basic understanding and knowledge of the X Window configuration file

      ● The following is a partial list of the files, terms, and utilities covered in this objective: /etc/X11/xorg.conf, xhost, DISPLAY, xwininfo, xdpyinfo, X

      106.2 Set up a display manager ( Chapter 6 )

      ● Basic configuration of LightDM

      ● Turn the display manager on or off

      ● Change the display manager greeting

      ● Awareness of XDM, KDM, and GDM

      ● The following is a partial list of the files, terms, and utilities covered in this objective: lightdm, /etc/lightdm

      106.3 Accessibility ( Chapter 6 )

      ● Basic knowledge of keyboard accessibility settings (AccessX)

      ● Basic knowledge of visual settings and themes

      ● Basic knowledge of assistive technologies (ATs)

      ● The following is a partial list of the files, terms, and utilities covered in this objective: sticky/repeat keys, slow/bounce/toggle keys, mouse keys, high contrast/large Print Desktop themes, screen reader, Braille display, screen magnifier, onscreen keyboard, Gestures (used at login; for example, gdm), Orca, GOK, emacspeak

      107 Administrative Tasks

      107.1 Manage user and group accounts and related system files ( Chapter 7 )

      ● Add, modify, and remove users and groups

      ● Manage user/group info in password/group databases

      ● Create and manage special-purpose and limited accounts

      ● The following is a partial list of the files, terms, and utilities covered in this objective: /etc/passwd, /etc/shadow, /etc/group, /etc/skel, chage, getent, groupadd, groupdel, groupmod, passwd, useradd, userdel, usermod

      107.2 Automate system administration tasks by scheduling jobs ( Chapter 7 )

      ● Manage cron and at jobs

      ● Configure user access to cron and at services

      ● Configure anacron

      ● The following is a partial list of the files, terms, and utilities covered in this objective: /etc/cron.{d, daily, hourly, monthly, weekly}, /etc/at.deny, /etc/at.allow, /etc/crontab, /etc/cron.allow, /etc/cron.deny, /var/spool/cron/*, crontab, at, atq, atrm, anacron, /etc/anacrontab

      107.3 Localization and internationalization ( Chapter 6 )

      ● Configure locale settings and environment variables

      ●