⟩ Which directory contain device special files? a /etc b) /etc/dev c) /root/bin d) /dev
d) /dev
d) /dev
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
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
Tell us what is the output of this program? #include<stdio.h> #include<stdlib.h> #include<fcntl.h> int main() { int fd, count; char ch, *buff; buff = (char *)malloc(sizeof(char)*10); fd = open("san.c",O_RDONLY); count = read(fd,buff,5); printf("%dn",count); return 0; } a) 5 b) 10 c) 0 d) -1
What is the output of this program? #include<stdio.h> #include<fcntl.h> int main() { int fd, count; fd = open("san.c",O_RDONLY); count = write(fd,"Linux",5); if(count != 5) perror("write"); return 0; } a) it will write the string "Linux" in the beginning of source file "san.c" b) it will write the string "Linux" in the end of the source file "san.c" c) segmentation fault d) none of the mentioned
Do you know what is the output of this program? #include<stdio.h> #include<fcntl.h> int main() { int fd, count; fd = open("google.txt",O_WRONLY|O_CREAT); count = write(fd,"Linux System Programming",5); if(count != 5) perror("write"); return 0; } a) it will create a file "google.txt" in the present working directory b) it will write the string "Linux System Programming" in the file "google.txt" c) both (a) and (b) d) none of the mentioned
Output of this program? #include<stdio.h> #include<fcntl.h> int main() { pid_t fd; char ch; int count; fd = open("san.c",O_RDONLY); do{ count = read(fd,&ch,1); printf("%c",ch); }while(count); return 0; } a) it will print nothing b) it will print the source code of the source file "san.c" c) segmentation fault d) none of the mentioned
In the output of this program, the string "/* Linux */" will be added at the ____ of the source file. #include<stdio.h> #include<stdlib.h> #include<fcntl.h> int main() { int fd; fd = open("san.c",O_RDWR|O_APPEND); write(fd,"/* Linux */",11); return 0; } a) end b) beginning c) second line d) third line
Assuming the files fileA, fileB, fileAB, fileBC and fileABC, exist in a directory, which files match with the pattern file[ABC]? a) fileA, fileB and fileABC b) fileABC c) fileA and fileB d) fileAB, fileBC and fileABC
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