Objective: write a program that can traverse a tree of subdirectories and search for a file with a given name.

• Write a C program myfind whose behavior resembles that of the system command find.
• myfind accepts the following parameters:

$ myfind filename startpath

• where
• filename is a substring that is matched against each filename in each directory that myfind inspects. If a file name matches filename or if the substring filename occurs within a file name, the name of that file is printed.
• startpath is an optional parameter that specifies the directory where myfind must start the search. If this parameter is not specified, myfind starts in the current directory.
• For each file whose name is a match, myfind must print its name and its mode.
• For each directory in which myfind finds a match, it must print that directory's full path.
• Test myfind using various directories on your computer attempting to match full and partial file names. Below is a typical output produced by myfind

$ myfind test
/users/stan/home
   test.c (0644/-rw-r--r--)
   test.o (0755/-rwxr-xr-x)
   testfile.txt (0644/-rw-r--r--)
   mytest.c (0644/-rw-r--r--)
/users/stan/home/dirA
   test1.txt (0644/-rw-r--r--)
/users/stan/home/dirA/dirA1/dirA1a
   mytest.txt (0644/-rw-r--r--)
/users/stan/home/dirB/dirB1
   oldtest24.c (0644/-rw-r--r--)

• Note: you are not allowed to use ftw() or any similar library function.

• A single C source code file with your work.
• Several screenshots (in PNG or JPG format) showing the results of executing the test cases listed above on a Linux terminal.