Help with Simple Perl/Python Script

I have the following problem, which I need done in Perl/ or Python using Unix/linux filters...

  1.             You have a very large file,  named 'ColCheckMe', tab-delmited, that you are asked to process.      You are told that each line in 'ColCheckMe' has  7 columns, and that the values in the 5th column are integers.
    

Using Perl/python (and standard LINUX/UNIX filters), indicate how you would verify that these conditions were satisfied in 'ColCheckMe'

  1.             In the same file, you are told  that each value in column 1 is unique. How would you verify that?
    
  2.             Write  a shell function that counts the number of occurrences of the word  �SpecStr� in the file 'ColCheckMe'.  
    

Thanks a lot

Please review the rules, which you agreed to when you registered, if you have not already done so.

please review the guidelines for posting homework and repost.

Thank You.

The UNIX and Linux Forums.