Change Directory

We can use chdir() to change the current working directory (cwd) of the current process.

#include <unistd.h>
int chdir(const char *path);

/* Shell/chdir.c */
#include <stdio.h>
#include <unistd.h>
#include <limits.h>
#include <errno.h>
#include <string.h>
int main(int argc,char *argv[])
{ 
    char buf[PATH_MAX+1]; 
    char input[255]; 
    if(getcwd(buf,PATH_MAX+1) != NULL) { 
        printf("Now it is %s\n",buf); 
        printf("Where do you want to go?:");         
        fgets(input,255,stdin); 
        input[strlen(input)-1] = '\0'; 
        if(chdir(input) != -1) { 
            getcwd(buf,PATH_MAX+1); 
            printf("Now it is %s\n",buf); 
        } 
        else { 
            printf("Cannot Change Directory\n"); 
        } 
    } 
return 0;
}