Passing array as command line argument

[MGoel]

Hi All,

I have let's say an array fil_array = elem1 elem2 ..

so what i want is invoke a awk script passing this array from shell script to the awk code.

How can i do and then later access in the awk code.

Thanks in advance

Manoj

 

[marsd]

gawk and nawk support the v option to import shell variables.
ex: gawk -v var=$myvar ' {printf "%s\n", var}'

However this only works with scalars,not arrays.
You would have to use something like:
function processArray() {
myarray[1]=1
myarray[2]=1
myarray[3]=1

for x in "${[myarray[@]}"
do
awk -v var=${myarray[$x]} ' {printf "%s\n",var}' filename
done
}

Good Luck

 

[MGoel]

Thanks marsd.

I knew about the -v feature and was using it till i hit the limitation of command line args length. So that's when i thought mebbe i can use an array.

But now that you confirmed it is not possible I had to use couple of args one time and that I moved some code to run another awk script with the left over args.

Thanks for your help

Manoj