1. What's cc? (Steps and what does each step do)2. Given a C program, which is run as   a.out this is a test        int g;        int h = 1;        main(int argc, char *argv[]) |     int A( int x, ......)        {                            |     {                                       int a,b,c;                |        int u,v;           a = 2;                    |           b = 3;                    |     HERE:                  c = A(a,b,"hello");       |        }                            |     }   (1). Complete the function heading of A(....)   (2). Which variables are global? which are local?      (3). Which variables are in a.out?   (4). Execution is at HERE:  DRAW A DIAGRAM TO Show         the stack contents from HERE to main()'s argc and argv.3.Given: printu(unsigned int x), which prints an UNSIGNED integer.  Write C code to print a SIGNED integer (which may be negative).4. Assignment #2: YOUR printf(char *fmt, ...) is written as                         {                            char *cp;                             int  *ip;                            ..........                         }     which may be called as            printf("abc %c xyz %s any %d thing %xn", a,b,c,d);(1). Write C code to let cp point to the fmt string       _____________(2). Write C code to let ip point to the first parameter a _______________(3). HOW do you print each of the items a,b,c,d?
Notes: List Processing and LAB #2
5. Write C statements for a struct containing     name      : an array of 32 chars     key       : an integer     child     : pointer to the first child node     sibling   : pointer to the next sibling node     parent    : pointer to the parent nodeA tree is implemented as a BINARY tree by the child and sibling pointers.Assume: struct node *p  points at a node A.        Write C code to print all children of A.        struct node *q  points at a new node.        Write C code to add q as a child of A.Given:                           0     1     2    3   4    5     6    7 int (*fptr[ ])(char *) = {menu, mkdir,rmdir,ls, cd, pwd, creat, rm};Write C code to call the function  create(char *pathname)Notes: Process Management in UnixLAB3 : Sh Simulator
6. Given: PATH=/bin:/usr/bin: .... :/usr/locl/bin:./   Write C code to tokenize PATH into separate dir strings7. what does   int pid = fork()    do?    after fork(); HOW TO TELL whether it's the parent or the child executing?   What does     int wait(int *status)  do?   What does  int   r = execve("pathname", argv, env);    do?   How does the system find pathname?__________________________________   Assume the Linux cat is in /bin directory.   When running YOUR sh with  cat file1 file2 file3 > outfile    8. Write C code to do output redirection >    For the above commnad line  cat file1 file2 fie3 > outfile:   Draw a diagram to show exactly what's YOUR myargv in the            r = execve("/bin/cat", myargv, env) call?_________________________   What's the value of r?  ____________9. Write C code to do pipe in the command line           cat filename | grep line10. Relationship betwee   open,  close, read  write                         fopen  fclose fread  fwrite11. Given: struct stat myst.  myst.st_mode, myst.st_atime    Write C code to get information of a filename:    Write C code to determine whether filename is a REGular file or a DIRectory.    Write C code to test whether            the file is Writeable by Others:____________________________                        Readable  by Others:____________________________        Write C code to print the file's access time in CALENDAR form.12. Write C code to print the names of all entries in the current directory.13. Fill in blanks for OPEN a file for read mode:    _______ fd = open("file", _______);         _______ fp = fopen("file", _______);      char buf[4096];(a). Write C code to read 4K bytes into buf[] using fd: ______________________(b). Write C code to read 4K bytes into buf[] using fp: ______________________Which of (a) and (b) is faster? WHY? _________________________________________    14. Use system calls to display the contents of a file:______________________    use Library I/O functions to dispaly the contents of a file:_____________ 15. Given: cpf2f(char *f1, char *f2) copies REG file f1 to REG file f2.    Write C code to copy a REG file /a/b/c into a DIRectory /x/y/z ___________ 

16. Write C code to test whether /a/b/c and /x/y/z are the SAME file:_________