awk,,, examine columns from right to left

[Kirk Reindl]

Hi,

Is there an argument/switch in awk that will examine columns from "right to left" as opposed to the default which is "left to right"??

Thanks

Kirk Reindl

[James R. Ferguson · Accepted solution]

Hi Kirk:

No, but its easy to do. Consider, for any number of fields on any line:

# echo "1 2 3"|awk '{for (i=NF;i>=1;i--) print $i}'

Regards!

...JRF...

[Tim D Fulford]

If you have a multiple row file JRF's might not put in the caridge return after each line...

awk '{for(i=NF;i=2;i=i-1) printf "%s ", $i; printf "%s\n", $1}'

Otherwise, as always, JRF is on the money

Regards

Tim

[Tim D Fulford]

oops, one slight correction

awk '{for(i=NF;i>1;i=i-1) printf "%s ", $i; printf "%s\n", $1}'