Hello everybody !!

I just started messing around with NAWK/AWK and I find it very interesting. I was trying to have script that prints only the the different lines (lines that are identical and adjacent, some that are identical and not adjacent, and some that are just different)

I tried direclty using the command line (awk '$1 != previous { print; previous = $1 }' file)

I am trying to do it in a script.

Your help will be appreciated