⟩ Do you know what is the output of this program? #include<stdio.h> #include<stdlib.h> #include<fcntl.h> int main() { int fd; char *buff; buff = (char *)malloc(sizeof(char)*5); fd = open("google.txt",O_RDWR|O_CREAT); write(fd,"Linux",5); read(fd,buff,5); printf("%sn",buff); } a) it will print nothing b) it will print the string "Linux" c) segmentation fault d) none of the mentioned
a) it will print nothing
Explanation:
We have to use "lseek" system call if we want to read the file from the beginning just after writing into it.
Output:
[root@localhost google]# gcc -o san san.c
[root@localhost google]# ls
san san.c
[root@localhost google]# ./san
[root@localhost google]# ls
san san.c google.txt
[root@localhost google]# vim google.txt
[root@localhost google]#
