LPI Linux Certification in a Nutshell, 2nd Edition

Answers

1. c. Section 8 holds administrative commands such as fsck and mkfs.

2. a. The !! command history expansion executes the previous command. Entering the Ctrl-P keystroke uses the Emacs key-binding bash to move up one line in the history; pressing Enter executes that command.

3. The man command displays manpages.

4. b and c. find and locate do not search the contents of files. /etc/passwd is not a script.

5. a. The variable must be set and exported. The semicolon separates the two commands.

6. /etc/group.

7. c. The g indicates that we're operating on the group privilege, and the +s indicates that we should add the "set id" bit, which means that the SGID property will be applied.

8. e. The script has an error and will not produce the expected output. In a for statement, the loop variable does not have the dollar sign. Changing line 2 to for v1 in a1 a2 will correct the error and produce the output in answer B.

9. c. tar should be used with the extraction option x and a tape device, such as SCSI tape /dev/st0.

10. a. cp should be aliased to the interactive mode with the -i option in .bashrc. .bash_profile normally doesn't include aliases.

11. d. The shadow password system has been implemented, placing all passwords in /etc/shadow as denoted by the x following the username.

12. PATH.

13. d. The Linux System Administrators' Guide is a free publication of the Linux Documentation Project (LDP) and is available online at http://www.tldp.org.

14. b. /etc/syslog.conf is the configuration file for the syslog daemon syslogd.

15. e. With the top ...