Print column 1 & 2

ps | awk '{print $1,$2}'

To separate the columns titles you can use "\t" between the numbers:

ps | awk '{print $1"\t"$2}'

By default the field separator for awk is a space, if it's not the case tell awk which one it is by using F for field separator. In the example of /etc/passwd file the separator is semi-colon

awk -F ":" '{print $1}' /etc/passwd

You can also grep:

awk -F ":" '{print $1}' /etc/passwd | grep myservice

To search for every last field in the line, but r...