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'm trying to do a fold script similar to the one built in the system. For ex, let say I wanna fold lines at 80 columns ( given input with lines that are 120 columns long, it prints the first 80 characters of each line, a new line, and then the remaining 40 characters )