Use execve to write a
The 1s program gets the width of the screen from the COLUMNS environment variable. If COLUMNS is Unset, then 1s assumes that the screen is 80 columns wide. Thus, you can check your handling of the environment variables by setting the COLUMNS environment to something less than 80:
linux> setenv COLUMNS
linux> ./my1s
.
. //Output is 40 columns wide
.
linux> unsetenv COLUMNS
linux> ./my1s
.
//Output is now 80 columns wide
.
Want to see the full answer?
Check out a sample textbook solutionChapter 8 Solutions
Computer Systems: A Programmer's Perspective (3rd Edition)
Additional Engineering Textbook Solutions
Starting Out with C++: Early Objects (9th Edition)
Using MIS (10th Edition)
Experiencing MIS
Starting Out with C++: Early Objects
Database Concepts (8th Edition)
Computer Science: An Overview (12th Edition)
- You were supposed to use import driver command and either way it doesn't work look at your output and expected output... THESE ARE WITH INPUTS 1 5 4 3 2 1 Yours: Welcome to the Personality Quiz! What type of Personality Quiz do you want to run? 1 - BabyAnimals 2 - Brooklyn99 3 - Disney 4 - Hogwarts 5 - MyersBriggs 6 - SesameStreet 7 - StarWars 8 - Vegetables Choose test number (1-8): Great! Let's begin the BabyAnimals Personality Quiz... How much do you agree with this statement? "I am the life of the party" 1. Strongly disagree 2. Disagree 3. Neutral 4. Agree 5. Strongly agree Enter your answer here (1-5): How much do you agree with this statement? "I warm up quickly to others" 1. Strongly disagree 2. Disagree 3. Neutral 4. Agree 5. Strongly agree Enter your answer here (1-5): How much do you agree with this statement? "I never at a loss for words" 1. Strongly disagree 2. Disagree 3. Neutral 4. Agree 5. Strongly agree Enter your answer here (1-5): How much do…arrow_forwardWrite a program that will sequentially list numbers from 0 to 50, changing its color depending on the size of the number, for example, for numbers from 0 to 10 it will be green, 11 to 22 red and 23 to 35 blue, etc. Limit the screen output speed to about 1 character / second. In order to change colors, you must first use the GetStdHandle function to get a handle to the console, which is similar to getting a file pointer before working with a file. It is done e.g. as follows: HANDLE hConsole; hConsole = GetStdHandle (STD_OUTPUT_HANDLE); The above functions are defined in windows.h Tip 2: Write a utility to find out the colors corresponding to all combinations from 0 to 255. Tip 3: Instructions and sample program for working with time. C language plz with explanation of codes. thanksarrow_forwardYou are a product manager and currently leading a team to develop a new product. Unfortunately, the latest version of your product fails the quality check. Since each version is developed based on the previous version, all the versions after a bad version are also bad. Suppose you have n versions [1, 2, ..., n] and you want to find out the first bad one, which causes all the following ones to be bad. given is an API bool isBadVersion(version) which returns whether version is bad. Implement a function to find the first bad version. You should minimize the number of calls to the API. please write code in pythonarrow_forward
- You are given a list of projects and a list of dependencies (which is a list of pairs of projects, where the second project is dependent on the first project). All of a project's dependencies must be built before the project is. Find a build order that will allow the projects to be built. If there is no valid build order, return an error.EXAMPLEInput:projects: a, b, c, d, e, fdependencies: (a, d), (f, b), (b, d), (f, a), (d, c)Output: f, e, a, b, d, carrow_forwardUnder the ;Challenge Code Here, what do I put here? I'm missing an execution loop and a couple of variable declarations. I need to include the following (BANKSEL, LATA, call, Delay, BCF, BSF, 5) 1. Selects Bank LATA2. Sets RA5 (High)3. Calls Delay4. Selects Bank LATA5. Clears RA5 (Low)6. Calls Delay ---- 1. Selects Bank LATA2. Sets RA5 (High)3. Calls Delay4. Selects Bank LATA5. Clears RA5 (Low)6. Calls Delayarrow_forwardWrite a utility function which tells the programmer the number of items in the read FIFO of the JTAG UART using as much inline assembly as possible uint8 _t CharsAvailRead ( v o l a t i l e uint32 _t ∗ JTAGBase )arrow_forward
- Write a program IN JAVA for an instructor whose course has the following policies: Two quizzes, each graded on the basis of 10 points, are given. One midterm exam and one final exam, each graded on the basis of 100 points, are given. The final exam counts for 50 percent of the grade, the midterm counts for 25 percent, and the two quizzes together count for a total of 25 percent. (Do not forget to normalize the quiz scores. They should be converted to percentages before they are averaged in.) Any grade of 90 percent or more is an A, any grade between 80 and 89 percent is a B, any grade between 70 and 79 percent is a C, any grade between 60 and 69 percent is a D, and grade below 60 percent is an F. The program should read in the student’s scores and display the student’s record, which consists of two quizzes scores, two exams scores, the student’s total score for the entire course, and the final letter grade. The total score is a number in the range to 100, which represents the…arrow_forwardThis is a MASM Project Assembly Code for x86 Processors ! The code below is supposed to copy whatever's in the source variable into the target variable. However, there is a single error, which will cause it to work correctly if fixed. What is it? .datasource WORD 10 DUP("AO")target WORD 10 DUP(?).codemov esi, OFFSET sourceadd esi, 18mov edi, OFFSET targetadd edi, 18mov ecx, LENGTHOF targetstdrepe movsw Group of answer choices: A: 18 should not be added to the ESI and EDI registers B: ECX should be set to the length of the source, not the target C: The direction flag should be cleared with CLD, not set with STD D: The REPE prefix should be replaced with REParrow_forwardprovide at least 1 example of code setInterval(), clearInterval(), andrequestAnimationFrame() running on your machine in VSC to the code below function fastFunction(){ console.log("fast function completed") } function slowFunction(){ var now = new Date().getTime(); while(new Date().getTime() < now + 5000){ /* processing*/} console.log("Slow function completed "); } function asyncslowFunction(){ console.log("asyncslowFunction was called") setTimeout(slowFunction, 5000); } fastFunction() slowFunction() fastFunction() slowFunction() /*---------*/ fastFunction() asyncslowFunction() fastFunction() asyncslowFunction()arrow_forward
- By using Linux (Centos 7 or 8) develop a C program to apply the memory times and times, run with this shellprogram, then show the MemToal,MemFree,Active with excel file. Here are the codes for reference. Code no.1: #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> main(int argc, char *argv[]) { void * p[100]; int i,times,msize; if(argc!=3) { times=20; msize=1024; } else { sscanf(argv[1],"%d",×); sscanf(argv[2],"%d",&msize); if(msize>10240) msize=10240; msize=1024*msize; if(times>100) times=100; } for( i=0; i<times; i++) {…arrow_forwardHere is the code that needs to be debugged, Ive done most of it but I think there is a problem in the logic that I cant find: // Program describes two files // tells you which one is newer and which one is larger import java.nio.file.*; import java.nio.file.attribute.*; import java.io.IOException; public class DebugThirteen1 { public static void main(String[] args) { Path file1 = Paths.get("/root/sandbox/DebugDataOne1"); Path file2 = Paths.get("/root/sandbox/DebugDataOne2.txt"); try { BasicFileAttributes attr1 = Files.readAttributes(file1, BasicFileAttributes.class); System.out.println("File: " + file1.getFileName()); System.out.println("Creation time " + attr1.creationTime()); System.out.println("Last modified time " + attr1.lastModifiedTime()); System.out.println("Size " + attr1.size()); BasicFileAttributes attr2 = Files.readAttributes(file2,…arrow_forwardWrite a program that displays a table with information about your person in the place specified in the window when running with the coordinates [x, y]. The parameters shown in the figure are illustrative, but must be entered in variables, the whole statement cannot be "hard" programmed. The display parameter will therefore be the position in the window and variables with the values of the displayed data. When changing any data (eg name), the frame must adapt to the text, not the other way around. C language Plz with explanation of codes.arrow_forward
- Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education