Hi,

I've got a file with a list of values. I need to find the minimum & maximum number a particular column in that file.
For example, the file can look like,

1 2 3 45 32
2 3 5 36 87
5 8 3 96 23
8 9 6 24 56

So, in the above list, I need to find out the minimum & maximum from the numbers in the 4th Column & 5th Column.

Note: The original file contains more than 1000 lines.

Regards
Ashok Y