Error checking help.

Shell Programming and Scripting
1

I am currently wrapping up a assignment for one of my classes. I need help writing some error checking logic. The problems I am having are:

  • keeping track of the records I have deleted and reported it back using echo.

I have no idea how to do this.

  • ensuring that line numbers fall within the lines present in the file
TOTAL=$[9wc -l ] dbname
  • writing a if statement for my add pattern that ensures that it is a number less then four digits, and falls within the years of 1870 and 2020.
if [$5 > "1870" || $5 < 2020]; then 
              echo "Enter year of the car:" $5
2

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.