here T1, T2 and T3 as a thread consumes less memory and
more speed
but as a process it consumes more memory.
Example:
Multiple threads can be run within a single memory
allocations.
but process needs seperate memory allocations for each
process.
Which character to use to escape meaning of special characters in search operations? a) [] b) ^ c) . d)
Which one is used to select only one copy of the repeated lines? a) uniq -u b) uniq -d c) uniq -c d) uniq -I
Indicate the right option to search for BOB, Bob, BOb or BoB? a) grep -i Bob files b) grep 'B[oO][bB]' files c) grep '[BOB]' files d) grep -v 'Bob' files
How can you search for blank line in a file? a) $ grep " " file b) $ grep "^$" file c) $ grep [" "] file d) $ grep [^$] file
Which option of grep displays the line number as well? a) -v b) -l c) -n d) -E
What will be printed for the command below? $ grep -c "^echo" abc a) The count of lines that do not contain the pattern echo in file abc b) The count of lines which begin with the pattern echo in file abc c) The count of lines that ends with the pattern echo in file abc d) None of the above
What is the output of this program?
#include<stdio.h>
#include<fcntl.h>
int main()
{
int fd, fd2, ret;
fd = open("san.c",O_RDONLY);
ret = close(fd2);
printf("%dn",ret);
}
a) 0
b) 1
c) -1
d) none of the mentionedWhat is the output of this program?
#include<stdio.h>
#include<stdlib.h>
#include<fcntl.h>
int main()
{
int fd, new_fd;
char *buff;
buff = (char *)malloc(sizeof(char)*8);
fd = open("san.c",O_RDONLY);
new_fd = dup(fd);
close(fd);
read(new_fd,buff,8);
printf("%sn",buff);
}
a) this program will not print anything
b) this program will print "#include"
c) this program will give the segmentation fault
d) this program will give the syntax errorWhat is the output of this program?
#include<stdio.h>
#include<fcntl.h>
int main()
{
int fd, count;
char ch[10];
fd = open("google.txt",O_RDWR|O_CREAT);
write(fd,"linux",5);
lseek(fd,2,SEEK_END);
write(fd,"san",3);
lseek(fd,0,0);
count = read(fd,ch,10);
printf("%sn",ch);
return 0;
}
a) linux
b) linuxsan
c) linux san
d) none of the mentionedTell me what is the output of this program?
#include<stdio.h>
#include<fcntl.h>
int main()
{
int fd, count;
char ch;
fd = open("google.txt",O_RDWR|O_CREAT);
write(fd,"s",1);
lseek(fd,0,SEEK_SET);
write(fd,"d",1);
lseek(fd,0,0);
read(fd,&ch,1);
printf("%cn",ch);
return 0;
}
a) d
b) s
c) sd
d) none of the mentioned
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