11573SrgrimesBEGIN { 21573Srgrimes $0 = "a b c d e f" 31573Srgrimes print NF 41573Srgrimes OFS = ":" 51573Srgrimes NF-- 61573Srgrimes print $0 71573Srgrimes print NF 81573Srgrimes NF++ 91573Srgrimes print $0 101573Srgrimes print NF 111573Srgrimes} 121573Srgrimes