41. How to run a process in the background?
42. What is the output of the program?
#! /usr/bin/awk -f
BEGIN {
a["linux","MCQ"]="example"
print a["linux","MCQ"]
}
#! /usr/bin/awk -f
BEGIN {
a["linux","MCQ"]="example"
print a["linux","MCQ"]
}43. Which command wait for the specified process to complete and return the exit status?
44. Static files of the bootloader are installed in
45. Which built-in function divides string into pieces seperated by fieldsep and stores the pieces in array?
46. If you are a root user, how can you grand execute permission only for the owner of the file project1?
47. Assuming the files fileA, fileB, fileAB, fileBC and fileABC, exist in a directory, which files match with the pattern file[ABC]?
48. Which gcc option stops compilation process after preprocessing stage?
49. Running "make" command without the arguments starts the target . . . . . . . . in the makefile.
50. 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;
}
#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;
}Read More Section(Linux)
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