Linux cit173
-a
Use the ___ option to display hidden files with the ls command.
.
When specifying a path, the __ character symbolizes the current directory.
~/.bashrc
Which of the following files is specific to each user and executed every time a bash shell is opened?
sed
Which of the following is a non-interactive editor?
The SYNOPSIS section
Which of the following man page sections will provide an example of how a command is executed?
VAR=value
Which of the following will create a variable?
-S
Which option to the ls command will sort the output by size instead of alphabetically?
echo
Which command will send text to the terminal display
a shell
Bash is
cut
If you want to extract fields from a file, you can use:
Essential administrative commands
The /sbin directory contains:
command [options] [arguments]
Basic form of a command line
Timestamp
By default, using the touch command on an existing file will update the file's _____.
The ls command will list which of the following by default?
The current directory
split
If you want to break apart a large file into smaller files, you can use:
cat
If you want to see the entire contents of a text file, you can use the _____ command:
--
Long command options are preceded by which two characters?
Insert characters
Select the function that the tr command cannot perform:
1
Shell command man pages are typically located in section
4
Special file man pages are typically located in section ____.
The most fundamental commands that are essential for the operating system to function
The /bin directory contains:
Commands that have been compiled from local sources
The /usr/local/bin directory contains:
Specifying directories to search for executable files
The PATH environment variable is used for:
exec
The _____ command will take another command for the argument to execute.
-s
The _____ option to the uname command will display the kernel name.
Display the man page of Section 5 for passwd.
The command man 5 passwd will:
the "magic" file
The file command uses _____ to determine file types.
Display all but the last line of readme.txt
The head -n -1 readme.txt command will:
False
The ls command can list the contents of only one directory at a time. True or False?
True
The mv command can be used to move more than one file at a time.
These three options mean the same thing
The syntax [-u|-utc|-universal] means:
True
The touch command can be used to change a file's time-stamp to something other than the current system time.
od
This command displays binary files in a variety of representations:
pwd
To display your current location within the filesystem
ls -l
To perform a "long listing" to show file details, use which of the following commands:
sort
To put the lines of a file in alphabetical order, you can run:
/
To search for something while viewing a man page, you first type a __ character.
set
To view all current variables, you can use:
Field names must be prefixed by the table name and a period
Two tables have columns with the same field names. What is required in order to join the two tables?
!ec
Which of the following commands will execute the last command that started with ec:
creates a blank file with that name.
Using the touch command and specifying a nonexistent file...
/etc/profile
Which of the following files is for all bash shell users and executed only at login?
join
Which command merges two files like related tables in a database?
uniq
Which command will remove consecutive duplicate lines from a file?
To stop tail from following a file
Why would you press CTRL+C when executing tail?
uname
command that displays info about the Linux kernel
