Linux

What is the purpose of the echo command?

Displaying the contents of operating system variables and displaying text.

What does the uniq command do?

Displays only one of two or more adjacent duplicate lines in a file.

A complete collection of Linux guides. Howtos, faqs, man pages, and Linux Magazines is available through the

The Linux Documentation Project

The X Window System was developed at:

The MIT

What command displays system load and duration information?

uptime

The whereis command can be used to:

whereis helps you locate executables, source files, and man pages

What command will locate a utility and display the full path name to it?

which

The zcat command is used to:

Display files compressed with the compress or gzip command

What is a link file?

A means to access a file by two or more names.

Linux and Unix systems have always had a privileged user

All of the above

On a Linux system being used as a server, a GUI may not be installed because

All of the above

What does it mean to say that Linux is case sensitive?

All of the above

What is a GUI?

All of the above

Which of the following is a common method for connecting and logging in to a Linux system.

All of the above

What is a multitasking operating system?

Allows each user to run more than one job at a time.

What is a multitasking system?

Allows each user to run more than one job at a time.

After logging in to Linux, if the last login data was not data was not from your previous login session, what is wrong?

An authorized user has logged into your account using your username and password.

Linux was written in

C

The C programming language was developed by

Dennis Ritchie

The acronym CLI means

Command Line Interface

The diff file1 file2 command can be used to:

Compares file1 and file2 line-by-line and displays differences between them as a series of commands that can be used to convert file1 to file2, or vice versa

On the Linux command line, the default line kill key is:

Control-U

The command to suspend the execution of a program is:

Control-Z

File security in Linux is provided by

File Access Permissions

The most essential thing a beginner needs to know before operating in Linux is:

How to log in and log out

Linux was developed by

Linus Torvalds

What command lists on the system?

ListAllCommands | grep searchstr

The Command: copy source destination

None of the above since there is no copy command in Linux or Unix.

What is a portable operating system?

One that runs on many different machines

Telnet is not a secure utility because:

Passwords are sent over the network in clear text.

POSIX stands for

Portable Operating System Interface

The purpose of the my configure configure.bak command is to:

Rename the configure file to configure.bak

The purpose of the mv configure configure.bak command is to:

Rename the configure file to configure.bak.

A user who is not working with root privileges may not list the files in:

The /lost+found directory

In Linux, less is more, because:

The less command is similar to the more command but displays and END message.

BSD and System V are examples of:

Unix

Linux commands can be constructed as a pattern using special characters called:

Wildcards

Ordinarily, if you type xy on the Linux command line, what happens?

You get an error message saying that no such command can be found

A Linux shell prompt is characterized by:

a character which indicates that the shelll is waiting for a command.

A textual interface is also as:

a pseudographical interface

The command: ls -a will display:

all files including hidden files.

An operating system:

all of the above

The Linux kernel

all of the above

What command lists users on the system?

all of the above

What is a command line interface?

all of the above

What is a file?

all of the above

What is command line interface?

all of the above

What utility can be used to compress a tar file?

all of the above

When stopping a program with the kill signal

all of the above

Which of the following is a common Linux shell?

all of the above

su and sudo are utilities which

allow the user to gain root privileges.

A virtual machine

appears to the user, and, to the software running on it, as a complete physical machine.

What command displays the contents of a file on the screen?

cat

The command: gzip myfile produces what outcome?

compresses myfile and produces myfile.gz; myfile is no longer a valid file name.

The command: cp file1 /home/rbass/file2 will do which of the following?

copies file1 to file2 and places it in the /home/rbass directory.

The following command can be used to copy the sample file into the example file.

cp

When examining the output of the command: ls -F entries followed by a "/" are:

directories

The command: grep bb sample displays which of the following

displays all lines in sample with bb embedded in them

What is the purpose of the "is" command?

displays files, directories and other in a directory

What command will assist you in determining the contents of file?

file

When examining the output of the command:

file

The command to compress a file, called mysort, is:

gzip mysort

The command to display the first five lines of the sample file in the current working directory is:

head -5 sample

Which is the following is not another accepted name for named pipes:

links

What is the command to display a list of files in a directory with each file's owner and attributes?

ls -l

Which of the following is an example of a pipe?

ls | wc

The command to deny messages from other users of the system you are logged into is:

mesg -n

You can log out of a UNIX system by

none of the above

Command options are specified with:

one or more letters preceded by a hyphen

A Linux pipleine

passes the output of one program to another as input.

What command allows you to change your password?

passwd

What does the command: delete all do?

rm

What option puts the rm command in interactive mode requiring you to confirm the deletion?

rm -i

Currently, the most challenging issue in operating system design

security

While logged into a Linux system, the write utility

sends a message to another user who is logged into the system.

Linux shell commands can be arranged in a file commonly called a:

shell script

The command to display the last 10 lines of a file is:

tail

What utility packs and unpacks archives?

tar

Device-independent input and output in a Linux system means:

that input and output can be redirected to any appropriate device.

When you enter echo $0 and press return in reponse to a shell prompt, the shell displays:

the name of the shell you are working with

How is the info utility used?

to display more complete and up to date information on GNU utilities than the man command.

The data stored in the /etc/motd file is used:

to display the Message of the Day

The man utility is used:

to display the pages in the system documentation of a command.

How do you use the apropos command?

to search for a keyword in the short description of a command in the man pages.