Verify large file with Unix function

I am seeking help on one UNIX function writting. Please help.

I have a large file, named 'MyFile', It was tab-delmited. I am told that each line in 'MyFile' has 7 columns, and that the values in the 5th column are integers. How do I use shell functions (and standard LINUX/UNIX filters) to verify that these conditions were satisfied in 'MyFile'?

Do not post classroom or homework problems in the main forums. Homework and coursework questions can only be posted in this forum under special homework rules.

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

More-than-likely, posting homework in the main forums has resulting in a forum infraction. If you did not post homework, please explain the company you work for and the nature of the problem you are working on.

If you did post homework in the main forums, please review the guidelines for posting homework and repost.

Thank You.

The UNIX and Linux Forums.