OS Admin and Security - Chapter 6

The Linux command line interface is called a ______

A program that takes input, evaluates syntax, provides output

A screen where we can type any command.

Unix has ______ common shells

______ was written by Bill Joy; good for interactive use

C shell was written by ______; good for interactive use

C shell was written by Bill Joy; good for ______

______ was written by Steven Bourne; good for scripts

Bourne shell was written by ______; good for scripts

Bourne shell was written by Steven Bourne; good for ______

The default Linux shell is ______

Which of the following is true?

What does bash stands for?

______ command accesses the Linux command manual, which provides you with syntax and usage information for any command

Which of the following is correct?

To close and return from manual pages (help), press the letter ‘___’ from keyboard.

Which command would you use to get brief help in Minimal Linux, in which manual pages aren't installed?

Which of the following is true?

Which of the following is true?

Which of the following is true?

______ provides a listing of all contents in a directory

Which one of the following is correct?

Which of the following is true for 'ls' command?

Shows details such as file type, size, permissions, owner, and last modification date

Shows all files, including hidden files (these start with .)

______ commond shows the absolute path of your current working directory, that is, from the top of the file system

The top or start of the file system is denoted by ___

______ allows you to move from one directory to another in the file system

Which one of the following is correct?

Takes you one step up in the file system

Takes you to the foo subdirectory of your current directory (assuming there is one)

Takes you to the /home/stu directory, whatever your current directory is

Take you to your own home directory

______ creates a new directory in the file system

Which one of the following is correct?

______ creates a subdirectory of your current directory called foo

______ creates a subdirectory of /home/stu called stufoo, regardless of your current directory

______ clears the shell

______ is helpful if you have been working in a shell for a while and it has gotten cluttered

______ clears the shell and restores it to its default functionality

______ is helpful if you have displayed the contents of a program file in the shell, and the shell is no longer behaving properly

If the shell is no longer behaving properly, and things have gotten really bad. What should you do?

______ creates an empty file

Which one of the following is correct?

Which one of the following is true for command 'touch'?

______ allows you to move a file to a new directory, or to rename a file in its current directory

Which of the following is correct?

With mv command, you can specify one or more files to move.

Which of the following is correct?

Interactive, always prompts you before you overwrite a file

Verbose, explains what is going on

______ allows you to copy a file

Which one of the following is correct?

Copies the file to another directory (same name)

When using the 'cp' command, you can specify one or more files to copy.

Copies the file to its own directory (new name)

Interactive, prompts you before you overwrite a file

Preserve file attributes (permissions, ownership, timestamps)

Recursive, copies all files and subdirectories

______ removes (deletes) files and directories

Which one of the following is correct?

In 'rm' command, you can specify one or more files to remove

Which one of the following is true for 'rm' command?

Interactive, prompts you before you remove an existing file

Recursive, removes all files and subdirectories of the specified directory

Verbose, explains everything as it happens

______ removes (deletes) empty directories

Which one of the following is correct?

Which one of the following is true for 'rmdir' command?

______ allow you to perform operations on multiple files/directories with one command.

Removing touchfile, touchfile2 and touchfile~ all at once is an example of ______

Any string of characters

One character

Used to specify valid single characters

Used to specify valid strings

______ finds files and directories on the file system

Which one of the following is true for 'find' command?

Which one of the following is correct?

finds all files & directories matching string

Yields a case insensitive search

Which one of the following is true for 'locate' command?

Which one of the following is correct?

Finds all files & directories with “string” anywhere in the name

yields a case insensitive search

Locate – n < num >

______ works by searching a local database

Database is updated daily; update manually with the ______ command

______ uses a previously built database (command updatedb). Is much faster, but uses an 'older' database and searches only names or parts of them.

To get updated results with ______ command, you must run the terminal command #updatedb as root or run the command with sudo, I.e., $sudo updated

To get updated results with locate command, you must run the terminal command ______ as root or run the command with sudo, I.e., $sudo updated

To get updated results with locate command, you must run the terminal command #updatedb as ______ or run the command with sudo, I.e., $sudo updated

To get updated results with locate command, you must run the terminal command #updatedb as root or run the command with sudo, I.e., ______

______ searches in the real system. Is slower but always up-todate and has more options (size, modification time,...)

______ displays the contents of one or more files to the screen

Which one of the following is correct syntax for 'cat' command?

Displays file1 on the screen

File1 and file2 are put together into newfile

______ displays the contents of a file onscreen, one screenful at a time

Which one of the following is the correct syntax for 'less' command?

Using 'less' command, press ______ to see the next line

Using 'less' command, press ______ to see the next screen

Using 'less' command, press ______ to see the previous line

Using 'less' command, press ______ to see the previous screen

Using 'less' command, press ______ to return to the shell prompt

______ can also be used with other commands to prevent scrolling

Which one of the following is a correct execution of the command 'less'?

Which one of the following is a correct execution of the command 'less'?

______ displays the first few lines of a file

______ displays the last few lines of a file

The default number of lines for both head and tail is ______

Which one of the following is correct syntax?

F the following is correct syntax?

To change the number of lines when using head or tail command, use the following command:

Which of the following is true?

Ls –al /bin | tail –n 5 - What does "-n 5" do?

______ searches for all occurrences of a given pattern in a given file

Which one of the following is correct syntax for 'grep' command?

Insensitive, ignore case in the search

______ is the standard graphical text editor

If you specify a filename when you open gedit, gedit will:

If you specify a filename when you open gedit, gedit will:

What happens if you executed 'gedit overview'?

______ displays commands used in the current bash session

Which one of the following is the correct syntax for 'history' command?

Clears the history

Displays only the last n commands

Print working directory

List directory contents

Change directory

Create a new directory

Clear the shell display

Return the shell display to defaults

Create a file

Move a file

Copy a file

Remove a file; remove an empty directory

Displays help for a command

Find a file

Display a file onscreen

Display a file without scrolling

Display the first 10 lines of a file

Display the last 10 lines of a file

Finds a string in a file

A graphical text editor

Displays recently used commands