![Question 6 1 pts Below is a basic implementation of the Linux command cat.This command is used to print the contents of a file on the console/terminal window. include <stidio.h include <stdlib.h int main int argc, char argv FILE fp if (2 arg c) printf (Usage: cat <filename An) exit (1) if (fp fopen (arg [1], r) NULL) fprintf (stderr Cant open input file $s\n, argv [1]): exit (1) char buffer [256] while (fgets (X 256 fp. NULL) fprintf (Y, s, buffer) close (Z) return 0: Which one of the following replacements for X, Y and Z will result in correct execution? X p, Y stdout, Z buffer X buffer, Y stdout, Z fp](http://img.homeworklib.com/questions/34185480-9f98-11eb-aff5-b5e1d335ab86.png?x-oss-process=image/resize,w_560)
Homework Answers
Ans: X = buffer, Y = stdout, Z = fp
X = represent the memory in which you want to read data
Y = represent where you want to display data
Z : file closing
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Below is a basic implementation of the Linux command "cat". This command is used to print...
C Language Programming. Using the program below - When executing on the command line only this...
C Language Programming. Using the program below - When executing on the command line only this program name, the program will accept keyboard input and display such until the user does control+break to exit the program. The new code should within only this case situation “if (argc == 1){ /* no args; copy standard input */” Replace line #20 “filecopy(stdin, stdout);” with new code. Open read a text file “7NoInputFileResponse.txt” that contains a message “There were no arguments on the...
Would u help me fixing this CODE With Debugging Code with GDB #include <stdio.h> #include <stdlib.h>...
Would u help me fixing this CODE With Debugging Code with GDB #include <stdio.h> #include <stdlib.h> #define SIZE (10) typedef struct _debugLab { int i; char c; } debugLab; // Prototypes void PrintUsage(char *); void DebugOption1(void); void DebugOption2(void); int main(int argc, char **argv) { int option = 0; if (argc == 1) { PrintUsage(argv[0]); exit(0); } option = atoi(argv[1]); if (option == 1) { DebugOption1(); } else if (option == 2) { DebugOption2(); } else { PrintUsage(argv[0]); exit(0); } }...
My question is listed the below please any help this assignment ; There is a skeleton...
My question is listed the below please any help this assignment ; There is a skeleton code: copy_file_01.c #include <stdio.h> #include <stdlib.h> int main(int argc, char* argv[]) { char ch ; FILE *source , *target; if(argc != 3){ printf ("Usage: copy file1 file2"); exit(EXIT_FAILURE); } source = fopen(argv[1], "r"); if (source == NULL) { printf("Press any key to exit...\n"); exit(EXIT_FAILURE); } target = fopen(argv[2], "w"); if (target == NULL) { fclose(source); printf("Press any key to exit...\n"); exit(EXIT_FAILURE); } while ((ch...
need this in c programming and you can edit the code below. also give me screenshot...
need this in c programming and you can edit the code below. also
give me screenshot of the output
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#define LINE_SIZE 1024
void my_error(char *s)
{
fprintf(stderr, "Error: %s\n", s);
perror("errno");
exit(-1);
}
// This funciton prints lines (in a file) that contain string
s.
// assume all lines has at most (LINE_SIZE - 2) ASCII
characters.
//
// Functions that may be called in this function:
// fopen(), fclose(), fgets(), fputs(),...
Assume I don't understand C++ Can someone explain this program to me Line by Line? Basically...
Assume I don't understand C++ Can someone explain this program to me Line by Line? Basically what each line actually does? whats the function? whats the point? Don't tell me what the program does as a whole, I need to understand what each line does in this program. #include #include #include #include #include #define SERVER_PORT 5432 #define MAX_LINE 256 int main(int argc, char * argv[]) { FILE *fp; struct hostent *hp; struct sockaddr_in sin; char *host;...
In Unix/Linux, input and output are treated as files and referenced by the operating system using file descriptors. When you open a shell session, for example, three file descriptors are in use: 0 st...
In Unix/Linux, input and output are treated as files and referenced by the operating system using file descriptors. When you open a shell session, for example, three file descriptors are in use: 0 standard input (stdin) 1 standard output (stdout) 2 standard error (stderr) By default, the command interpreter (shell) reads keyboard input from file descriptor 0 (stdin) and writes output to file descriptor 1 (stdout), which appears on the screen. As you explored in Lab 2, input/output can be...
devmem2.c #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <string.h> #include <errno.h> #include <signal.h> #include <fcntl.h> #include...
devmem2.c
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <signal.h>
#include <fcntl.h>
#include <ctype.h>
#include <termios.h>
#include <sys/types.h>
#include <sys/mman.h>
#define FATAL do { fprintf(stderr, "Error at line %d, file %s
(%d) [%s]\n", \
__LINE__, __FILE__, errno, strerror(errno)); exit(1); }
while(0)
#define MAP_SIZE 4096UL
#define MAP_MASK (MAP_SIZE - 1)
int main(int argc, char **argv) {
int fd;
void *map_base = NULL, *virt_addr = NULL;
unsigned long read_result, writeval;
off_t target;
int access_type = 'w';
if(argc...
#include <stdlib.h> #include <stdio.h> #include "main.h" #define MAX_NUM_LENGTH 11 void usage(int argc, char** argv) { if(argc...
#include <stdlib.h> #include <stdio.h> #include "main.h" #define MAX_NUM_LENGTH 11 void usage(int argc, char** argv) { if(argc < 4) { fprintf(stderr, "usage: %s <input file 1> <input file 2> <output file>\n", argv[0]); exit(EXIT_FAILURE); } } /* This function takes in the two input file names (stored in argv) and determines the number of integers in each file. If the two files both have N integers, return N, otherwise return -1. If one or both of the files do not exist, it...
C programming Question1 (a) Write a C program that will print out all command line arguments,...
C programming Question1 (a) Write a C program that will print out all command line arguments, in reverse order, one per line. Prefix each line with its index. 6 marks] (b) Consider this C code snippet int a- 100 int b- 42; inte p- &a; int q-b; p qi printf ("%d %d\n" ,a,*p); When this code is executed, what numbers will it print? [2 marks] (c) Consider this C program int main(int argc,char argv) char* target- "Apple" char vord[100] printf...
I have included what I need to do for part b, and what I have so...
I have included what I need to do for part b, and what I have so
far.
I
2.2 Part B Write a default version of program to report the behavior of the Linux kernel by inspecting kernel state. The program should print the following values to the user screen or console: CPU type and model Kernel version Amount of time since the system was last booted, in thefomdmm:5s (for example, 3 days 13 hours 46 minutes 32 seconds would...
need this in c programming and you can edit the code below. also
give me screenshot of the output
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#define LINE_SIZE 1024
void my_error(char *s)
{
fprintf(stderr, "Error: %s\n", s);
perror("errno");
exit(-1);
}
// This funciton prints lines (in a file) that contain string
s.
// assume all lines has at most (LINE_SIZE - 2) ASCII
characters.
//
// Functions that may be called in this function:
// fopen(), fclose(), fgets(), fputs(),...
In Unix/Linux, input and output are treated as files and referenced by the operating system using file descriptors. When you open a shell session, for example, three file descriptors are in use: 0 standard input (stdin) 1 standard output (stdout) 2 standard error (stderr) By default, the command interpreter (shell) reads keyboard input from file descriptor 0 (stdin) and writes output to file descriptor 1 (stdout), which appears on the screen. As you explored in Lab 2, input/output can be...
devmem2.c
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <signal.h>
#include <fcntl.h>
#include <ctype.h>
#include <termios.h>
#include <sys/types.h>
#include <sys/mman.h>
#define FATAL do { fprintf(stderr, "Error at line %d, file %s
(%d) [%s]\n", \
__LINE__, __FILE__, errno, strerror(errno)); exit(1); }
while(0)
#define MAP_SIZE 4096UL
#define MAP_MASK (MAP_SIZE - 1)
int main(int argc, char **argv) {
int fd;
void *map_base = NULL, *virt_addr = NULL;
unsigned long read_result, writeval;
off_t target;
int access_type = 'w';
if(argc...
C programming Question1 (a) Write a C program that will print out all command line arguments, in reverse order, one per line. Prefix each line with its index. 6 marks] (b) Consider this C code snippet int a- 100 int b- 42; inte p- &a; int q-b; p qi printf ("%d %d\n" ,a,*p); When this code is executed, what numbers will it print? [2 marks] (c) Consider this C program int main(int argc,char argv) char* target- "Apple" char vord[100] printf...
I have included what I need to do for part b, and what I have so
far.
I
2.2 Part B Write a default version of program to report the behavior of the Linux kernel by inspecting kernel state. The program should print the following values to the user screen or console: CPU type and model Kernel version Amount of time since the system was last booted, in thefomdmm:5s (for example, 3 days 13 hours 46 minutes 32 seconds would...
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