O Exercise:1- Explain the difference between the following commands:echo Hello and echo -n Hello.2- Display A BC with two spaces between B and C.3- Complete the following command (do not use spaces) to display exactly the followingoutput:4+4 =810+14=244- Use echo to display the following exactly:??\\5- When you type passwd, which file is executed?6- Echo it worked when touch test42 works, and echo it failed when the touchfailed. All on one command line as a normal user (not root). Test this line in your homedirectory and in /bin/7- Write a command line that executes rm file55. Your command line should print 'success' iffile55 is removed, and print 'failed' if there was a problem.8- Use echo to display Hello followed by your username. (use a bash variable!)echo Hello SUSER.Use Ubuntu please

As per our policy we are allowed to answer only first three sub parts in multipart question. 1.echo…

1- Explain the difference between the following commands: echo Hello and echo -n Hello. 2- Display A BC with two spaces between B and C. 3- Complete the following command (do not use spaces) to display exactly the following output: 4+4 =8 10+14=24

1- Explain the difference between the following commands: echo Hello and echo -n Hello. 2- Display A BC with two spaces between B and C. 3- Complete the following command (do not use spaces) to display exactly the following output: 4+4 =8 10+14=24

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

Le Chef Heureux Restaurant has 20 tables that can be reserved at 5 p.m., 7 p.m., or 9 p.m.Design a program that accepts reservations for specific tables at specific times; the user entersthe number of customers, the table number, and the time. Do not allow more than four guests pertable or invalid table numbers or times. If an attempt is made to reserve a table already taken,reprompt the user. Continue to accept reservations until the user enters a sentinel value or allslots are filled. Then display all empty tables in each time slot. Pseudocode and flowchart (RAPTOR please) if possible. Do not write it in any particular language, that is not required.
What is the output of this code segment when the input value of X equal 100. * X = CInt(Text1.Text) %3D Select Case X Case 3: X = X + 1: Print X Case 3, 8 To 20: Print X Case Else MsgBox ("out of rage") End Select out of range 19 3 10
which functions you would use to read the following string from a users input: "This is a fun day" A. cin >> B. cin.get function c. getline function d. all of the above
X609: Magic Date A magic date is one when written in the following format, the month times the date equals the year e.g. 6/10/60. Write code that figures out if a user entered date is a magic date. The dates must be between 1 - 31, inclusive and the months between 1 - 12, inclusive. Let the user know whether they entered a magic date. If the input parameters are not valid, return false. Examples: magicDate(6, 10, 60) -> true magicDate(50, 12, 600) –> false
Question 18 Guessing Game Code a solution for the following problem. Post your program in the textbox below. (NOTE: Indenting matters.) • Hard-code an integer variable valid value from 1 to 10. Ask the user to guess your whole number and input that number. - Then compare the user's input to your literal number ani tell the user how they compare, is it greater than, less than or equal to each other. Extra: Send an error message if the value entered is not between 1 and 10. Edit View Insert Format Tools Table Ev Ev To E v V O Paragraph v BIU A ev T? v 12pt v
echo Enter your Nane: read studentnane echo Enter your First Grade: read grade1 echo Enter your Second Grade: read grade2 echo Enter your Third Grade: read grade3 SUn=$((Sgrade1+$grade2+$grade3)) ave-$(($sun/3)) echo "Hi $studentnane your average is Şave." With the given code. The following are entered: Kenneth Kim 91 100 94 What is the output?
What is the output of this code segment when the input value of X equal 100. * X = CInt(Text1.Text) Select Case X Case 3: X = X + 1: Print X Case 3, 8 To 20: Print X Case Else MsgBox ("out of rage") End Select O out of range 19 O 10 3
the following code is not true because 1 Dim j as integer, i as integer, Z as single 2 Dim k as integer, L as integer 3 K=5 4 L=2 5 For i=1 to Nt.text 6 F1=1 7 Forj=1 to i 8 F1=F1*j 9 Next j 10 Z=Z+ (X.text)^(L)/F1 11 L=L+k 12 K=K+1 13 Next i 14 Zt.text=Z+1 step 1 step 2 step 3 step 4 step 5 step 6 step 7 step 8 step 9 step 10 step 11 step 12 step 13 step 14
2. Three is a Crowd by CodeChum Admin This one's pretty simple as well, but I hope you haven't forgotten how to create a new line! Instructions: 1. Input three random characters and make sure they are inputted on different lines. 2. Print out the three characters in order, each on a different line, using only 1 printf() statement and newline characters (\n). 3. An initial code with the one printf() is provided for you, just complete the missing items inside it. Do not add any other printf()'s Input 1. Three characters Output The first three lines will contain message prompts to input the three characters. The last lines contain the three characters inputted. Enter the first character: A Enter the second character: B Enter the third character: C A В C
Evaluate the following Postfix Expression 6 2 3 + - 3 8 2 / + * 2 & 3 + Hint: the output should be 52 like the picture.
LAB ASSIGNMENTS, CONT. 2. sandwich.py - follow the instructions below. You may adjust the food items to include your personal favorites. • It uses all of our standard mipo_ex features. • The menu should have numbered or letter options. Sandwich Maker Write a program that asks users for their sandwich preferences. The program should use PylnputPlus to ensure that they enter valid input, such as: Using inputMenu() for a bread type: wheat, white, or sourdough. Using inputMenu() for a protein type: chicken, turkey, ham, or tofu. Using inputYesNo() to ask if they want cheese. If so, using inputMenu() to ask for a cheese type: cheddar, Swiss, or mozzarella. Using inputYesNo() to ask if they want mayo, mustard, lettuce, or tomato. Using inputlnt() to ask how many sandwiches they want. Make sure this number is 1 or 120 00T 110 more. Come up with prices for each of these options, and have your program display all the choices and their prices plus a total cost at the very end. 3 130
I keep running this code as seen in the first picture and it keep giving me this error message seen in the second picture and I don't understand why. the initial question is: Allow a user to enter any number of double values up to 15. The user should enter 99999 to quit entering numbers. Display an error message if the user quits without entering any numbers; otherwise, display each entered value and its distance from the average. if that helps