LinuxQuestions.org - Shell variable in awk script

- Programming (https://www.linuxquestions.org/questions/programming-9/)

- - Shell variable in awk script (https://www.linuxquestions.org/questions/programming-9/shell-variable-in-awk-script-790765/)

rohini_sharma

02-22-2010 08:01 AM

Shell variable in awk script

I need to export some Varibales in Shell like (KSH )

export CORE=1
export DODDY=0

then I need to call these variables in the awk

#!/bin/awk -f

BEGIN {

if ( $CORE ~ "1" ) {

print "Core is right one "

}

But awk doesnot understand the variables and I am not getting the right results

Can you help me out

Thanks
Rohini

catkin

02-22-2010 08:15 AM

Try awk's -v option

irmin

02-22-2010 08:17 AM

In awk the environment variables can be accessed through the associative array ENVIRON:

Code:

#!/bin/awk -f



BEGIN {



if ( ENVIRON["CORE"] ~ "1" ) {



print "Core is right one "



}

pixellany

02-22-2010 08:32 AM

Quick glance:

The -f flag says to get code from a file, but you have the code inline.

"~" means "ERE match". Why not just use "==" ?

All times are GMT -5. The time now is 04:20 PM.