跪求哪位大哥帮我解决这几道脚本题,我觉得挺难的!

跪求哪位大哥帮我解决这几道脚本题,我觉得挺难的!   

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1. Write a shell script to check the items of a designated directory which must be input from your terminal: if the item is a directory, delete it; else print the name of this item.
2. Write a shell script to display the odd lines of a given file.
3. Write a shell script using a directory as input, if the input is null, use current directory as input. The routine is used to find all files with suffix ".c" and ".cpp", and then compare each other to check out whether there exist two files having the same contents: if exist, print out the corresponding names of these files.
4. Write an ANSI C code. Use a Makefile to build it (including compile and link) into binary file.
The function of this binary file should be:
Read a serial of numbers from a given file, and then find the Top 5 maximum numbers.
You should give:
1. Makefile ( hint : one main file and one sub-routine file )
2. all C source code
3. the whole procedure of how you compile and link

鄙视跪求的

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