itn 1
To run a program in the background, append the ____ character to the end of the command used to start the program. Group of answer choices
&
The ____ option of the diff command does not compare for blank lines.
-c
The ____ option of the find command displays files that have been changed within the last n days.
-mtime n
The ____ operator of the test command, combines two expressions and tests a logical OR relationship between them.
-o
The ____ option of the ping command displays only a summary of the results.
-q
The cp ____ option creates a symbolic link or name at the destination rather than a physical file.
-s
One way to run a shell script is to make it executable by using the x permission and then typing ____ prior to the script name when you run the script itself
-v
The ____ option of the grep command displays only lines that do not contain the search pattern.
-v
To run the myscript shell script located in the current directory, you should enter: ____.
./myscript
The ____ file typically contains settings, such as environment variable settings, aliases, and other settings that you always want in effect when you are in the Bash shell. Group of answer choices
.bash_profile
For your own account, the shell that is set up by default is established by the system administrator in the ____ file.
/etc/passwd
The IP address ____ is the standard designation for loopback communications.
127.0.0.1
If a source file contains ____ errors, it cannot be converted into an executable file.
Syntax
The character sequence ____ forces the next character to uppercase.
\u
To append new lines in sed, you must use the ____ command
a\
The ____ file is run each time you log in or give the command to set Bash as your current shell, but not when you run a subshell.
bash_profile
To reference a variable, you use a dollar sign ($) in front of it or enclose it in ____
braces/curly brackets ({ })
Each record in the /etc/passwd file is simply a record with variable-length fields separated by ____.
colons ( : )
The ____ command locates identical lines within two identically sorted files.
comm
____ variables are used to store information about the setup of the operating system, and after they are set up, you typically do not change them.
configuration
The ____ command displays the amount of free and used memory in the system
free
A(n) ____ is a variable that represents a set of key/value pairs.
hash
The UNIX/Linux shell acts as a(n) ____ when reading script files.
interpreter
A sorting ____ is a field position within each line
key
The ____ utility maintains program source code.
make
To move a file, you use the ____ command along with the source file name and destination name.
mv
The ____ utility gathers statistics and information about IP communications on a computer. Group of answer choices
netstat
A function name differs from a variable name because a function name is followed by a set of ____.
paratheses
The ____ utility offers a simple way to test connections.
ping
The ____ redirects the output of one command to the input of another command.
pipe operator (|)
In UNIX/Linux, text files and binary files are considered to be ____ files.
regular
A(n) ____ is a simple variable that holds a number or a string.
scalar
With no options, ____ displays the current listing of Bash environment and shell script variables.
set
If you execute ____, the contents of file1 are sorted and the results are stored in file2. Group of answer choices
sort file1 > file2
System administrators and programmers refer to standard output as ____.
stdout
The paste command normally sends its output to ____.
stdout
The ____ command displays a listing of the most CPU-intensive tasks, such as the processor state, in real time (the display is updated every five seconds by default).
top
The ____ command enables you to initialize the terminal display or terminal window, to place text and prompts in desired locations, and to respond to what the user selects from the menu.
tput
The ____ command is useful when you want your shell program to automatically remove any temporary files that are created when the shell script runs
trap
The ____ command removes duplicate lines from a file.
uniq
The ____ statement continues to loop and execute commands or statements as long as a given condition or set of conditions is true
while
The .bashrc file is a hidden file contained in ____ directory.
your home
