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- the following must be done using shell scripting in linuxThe script will read from stdinThe format of the matrix is fixed write a script that prints the sum of each row the matrix can also include 1 and 2 digit numbers input| 106 150 || 100 125 || 115 215 | output256225330Modify this code to let it run concurrently to send and receive any messages between 2 processes and take one command line argument to change between 2 processes, for example, 1 or 2 to indicate the process 1 or process 2. #include <unistd.h>#include <stdlib.h>#include <stdio.h> #include <string.h>#include <fcntl.h>#include <sys/types.h>#include <sys/stat.h>#define FIFO_NAME “/tmp/my_ fo”int main(int argc, char *argv[]){int res, open_mode = 0; if (argc < 2){fprintf(stderr, “Usage: %s <[O_RDONLY, O_WRONLY, O_RDWR, O_NONBLOCK]>\n”, *argv); exit(EXIT_FAILURE);}argv++;if (*argv){if (strncmp(*argv, “O_RDONLY”, 8) == 0)open_mode |= O_RDONLY;if (strncmp(*argv, “O_WRONLY”, 8) == 0)open_mode |= O_WRONLY; if (strncmp(*argv, “O_RDWR”, 6) == 0) open_mode |= O_RDWR;if (strncmp(*argv, “O_NONBLOCK”, 10) == 0)open_mode |= O_NONBLOCK;} if (access(FIFO_NAME, F_OK) == -1{res = mk fo(FIFO_NAME, 0777);if (res){fprintf(stderr, “Could not create fo%s\n”,…How to write code in git bash using shell script such that l want it to display multiples of and chosen number that are more than or equal to 15 upto less than or equal to 60( minimum and maximum range that a user chooses)
- 4) Write a bash script to demonstrate until loop which displays "While Loop Demo" and exits when key q is typed.6) Write a bash script using for loop to get the list of cars as shown int he screenshotWrite a shell script to print contents of a file from a given line number to the next given line number. Print an error if sufficient arguments are not provided. [Example: If shell script is range.sh; Input: $./range.sh 5 5 filename Output: Contents of filename from line 5 and the next 5 lines.]
- modify minishell.c to run who, ls, and date with option. who will show the count of users, ls will list files in long listing format and date will show UTC time. Modify this file so the shell can run commands with options.*/#include <stdio.h>#include <unistd.h>#include <sys/types.h>#include <sys/wait.h>#include <stdlib.h>#include <fcntl.h> int main(int argc, char *argv[]){ char *cmd[] = {"who", "ls", "date"}; int i; while(1){ printf("0=who 1=ls 2=date : "); scanf( "%d", &i ); if(i<0 || i>2) continue; pid_t result= fork(); if(result==0) { /* child */ execlp( cmd[i], cmd[i], (char *)0 ); printf("execlp failed\n"); exit(1); } else if (result >0){ /* parent */ int status; wait(&status); } else{ //handle error } } return 0;}Consider the following C fragment. The program is stopped immediately after the assignment to point.y and we know that &point is 0x0804A010. What would gdb print in response to x/8bx 0x0804A010? (Note: The /8bx means print eight bytes and I did this linux.cs.wwu.edu.) re struct point_st { int x; int y; }; void function() { struct point_st point; point.x = 0x01234567; point.y = 0x89ABCDEF; ... } a. 08040A010: 01 23 45 67 89 AB CD EF b. 08040A010: 67 45 23 01 EF CD AB 89 c. 08040A010: 89 AB CD EF 01 23 45 67 d. 08040A010: EF CD AB 89 67 45 23 01python homerwork Select the correct script to write 'Hello!' in the file sample.txt for the command line argument python myscript.py sample.txt Hello!? a. f = open(sys.argv[2], 'w') f.write(sys.argv[3]) f.close() b. f = open(sys.argv[1], 'a') f.write(sys.argv[2]) f.close() c. f = open(sys.argv[2], 'w') f.write(sys.argv[1]) f.close() d. f = open(sys.argv[1], 'r') f.write(sys.argv[2]) f.close()
- How would you implement sub shells by implementing “(” and “)” For example, - echo "-$(sed 's/cat/lion/g' a.txt)" > hello.txt - Purpose: First, replaces all occurrences of cat with lion in file “a.txt” and echo into hello.txt file --- Thank you. explain in detail or provide pseudocode.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++) {…The name of the following shell script is “abc” SEE THE IMAGE 19.1 Please explain what this script does.19.2 Suppose the user runs it $ ./abc. This script prompts the user, and the user enters the following numbers in sequence 4, 8, 0, 4, 2. Given these input values, can you show all the output lines of this running scri