topic Re: column count in awk in Operating System - Linux

column count in awk

Christian Marquardt_1 — Thu, 04 Jan 2007 08:45:49 GMT

Hello,
I've a script with awk reading lines from a file. Sometimes the line has 9 columns, sometimes 8.
Does anyone know how to get the total number of the columns in the actually read line???
Is there any variable like $? ....????

Kind regards
Christian

Re: column count in awk

Peter Godron — Thu, 04 Jan 2007 08:49:04 GMT

Christian,
NF is the one.
Example:
awk '{ for (i = NF; i > 0; --i) print $i }' file

Print columns in reverse order

Re: column count in awk

spex — Thu, 04 Jan 2007 08:50:36 GMT

Hi Christian,

awk '{print NF}'
PCS

Re: column count in awk

Christian Marquardt_1 — Thu, 04 Jan 2007 08:55:53 GMT

Thanks a lot ... that's what I need!

kind regards
Christian

Re: column count in awk

Christian Marquardt_1 — Thu, 04 Jan 2007 08:56:44 GMT

everything is cool