Linux
practice.

How to run a process in the background?

What is the output of the program?

#! /usr/bin/awk -f
BEGIN {
    a["linux","MCQ"]="example"
    print a["linux","MCQ"]	   
}

Which command wait for the specified process to complete and return the exit status?

Static files of the bootloader are installed in

Which built-in function divides string into pieces seperated by fieldsep and stores the pieces in array?

If you are a root user, how can you grand execute permission only for the owner of the file project1?

Assuming the files fileA, fileB, fileAB, fileBC and fileABC, exist in a directory, which files match with the pattern file[ABC]?

Which gcc option stops compilation process after preprocessing stage?

Running "make" command without the arguments starts the target . . . . . . . . in the makefile.

What is the output of this program?

#include<stdio.h>
#include<stdlib.h>
 
int main()
{
    int fd[2];
    int child;
    char buff[6];
    if(pipe(fd) != 0)               
        perror("pipe");
    child=fork();
    switch(child){
        case -1 :
            perror("fork");
            exit(1);
        case 0 :
            if (write(fd[1],"Linux",6) != 6)
                perror("write");
                break;
            default :
                read(fd[0],buff,6);
                printf("%s\n",buff);
                break;
    }
    return 0;
}

As we type "make" command on the terminal

which of these is NOT a valid variable in bash

Which command is used to display disk consumption of a specific directory

What is the output of this program?

#include<stdio.h>
#include<pthread.h>
 
int a;  
void *fun_t(void *arg);
void *fun_t(void *arg)
{       
    a = 20;
    pthread_exit("Bye");
}
int main()
{
    pthread_t pt;
    void *res_t;
    a = 10;        
    if(pthread_create(&pt,NULL,fun_t,NULL) != 0)
        perror("pthread_create");
    if(pthread_join(pt,&res_t) != 0)
        perror("pthread_join");
    printf("%d\n",a);
    return 0;
}

Attributes can be exported for objects in the form of . . . . . . . . in the file system.

What is the output of this program?

#! /usr/bin/awk -f
BEGIN {
    two=2;
    two++;
    print two 
}

Find / -name '*' will

. . . . . . . . is a directory (which should exist), on which to mount the file system?

The command "echo www.example.com > /proc/sys/kernel/hostname" will

Which one of the following is not true?