I have a very large file, named 'ColCheckMe', tab-delimited, 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 shell functions indicate how you would verify that these conditions were satisfied in 'ColCheckMe'

K got this...

nawk ‘
     NF != 7 {
            Printf(“[%d] has invalid [%d] number of fileds\n”, FNR, NF)
     }
     $5  !~  /^[0-9]+$/  {
            Printf(“[%d] 5th field is invalid [%s]\n”, FNR, $5)

}’ ColCheckMe

Now, 2. In with the similar file, you are told that each value in column 1 is unique. How would I verify that?

1. Also write a shell function that counts the number of occurrences of the word “SpecStr” in the file 'ColCheckMe'

Any one can help in SHELL or everything including the first in PERL Scripting.