Simple AWK question

[santhas]

Hi AWK gurus,

What is the quick way to print a file containing values
1
2
3
4
5
to as
1:2:3:4:5

Thanks
San

 

[Annihilannic]

awk 'NR>1 {printf ":"} {printf $0} END {print ""}'

For every line excluding the first, print a ":" prefix.

For every line including the first, print the value without a carriage return.

At the end print a carriage return.

Annihilannic.