Strip whitespaces in AWK

Question

I have tried to remove all the white spaces but it's not taking it.

awk -F, -v OFS=", " 'NR==1 {
        print $0,"FILENAME,DATE_LOADED,TEST";
        next
      }
      {                              
        line=$0
        key=echo "${11//[[:space:]]/}" "${12//[[:space:]]/}" "${57//[[:space:]]/}"
        key | getline
        k=$0
        cmd="md5 <<<"k
        cmd | getline
        md5sum=$0
        print line, ENVIRON["FILE"], ENVIRON["ISODATE"], md5sum
}' $FILE > $NAME"_ready.csv"

If I try this it throws errors. I tried all options and really at a loss here.

key=echo $11$12$57 | tr -d

Answer 1

awk '{gsub(" +","");print $0}' test.text

If you want only awk based solution then this one liner will remove all the spaces from the file.