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implementing mkdir, chdir, mv, pwd inside a shell !

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Homework and Emergencies Homework & Coursework Questions implementing mkdir, chdir, mv, pwd inside a shell !
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Old 11-03-2009
CPU & Memory implementing mkdir, chdir, mv, pwd inside a shell !
1. The problem statement, all variables and given/known data:

need to implement mkdir, chdir, mv, pwd

given a shell.cpp directory.cpp and some other files

this shell missing these commands, and i need to implement them inside the shell

2. Relevant commands, code, scripts, algorithms:

shell included in this file:
http://avida.cs.wright.edu/courses/C...Winter.tar.bz2


3. The attempts at a solution (include all code and scripts):

the mkdir is not working from inside the shell. neither chdir , mv or pwd.

i successfuly implemented piping ,redirection, execution in the background in earlie assigment, but this assigment is not working out

4. School (University) and Course Number:

CEG433/CEG633 - Operating Systems
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LEARN ABOUT CENTOS

pwd.h

pwd.h(3HEAD)                                                          Headers                                                         pwd.h(3HEAD)

NAME

       pwd.h, pwd - password structure

SYNOPSIS

       #include <pwd.h>

DESCRIPTION

       The <pwd.h> header provides a definition for struct passwd, which includes the following members:

       char  *pw_name     user's login name
       uid_t pw_uid       numerical user ID
       gid_t pw_gid       numerical group ID
       char  *pw_dir      initial working di rectory
       char  *pw_shell    program to use as shell

       The gid_t and uid_t types are defined as described in <sys/types.h>. See types.h(3HEAD).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Interface Stability          |Standard                     |
       +-----------------------------+-----------------------------+

SEE ALSO

       getpwnam(3C), types.h(3HEAD), attributes(5), standards(5)

SunOS 5.10                                                          10 Sep 2004                                                       pwd.h(3HEAD)