⟩ Tell 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
d) none of the mentioned
Explanation:
Because of "lseek" system call the character "s" is overwritten by character "d" in the file "google.txt".
Output:
[root@localhost google]# gcc -o san san.c
[root@localhost google]# ./san
d
[root@localhost google]#
