awk split field format

Question

awk '{split($2,a,"-")};
     {if ($1=="aa") {print "'$var'/"$1"/"a[1]"/"$2" '$var'/bb/"a[1]} 
      else {print "'$var'/"$1"/"a[1]"/"$2" '$var'/aa/"a[1]}}'

hi, $2 is all lower case text. I have split it and would like to output a[1] in upper case.

How can I do this ?

Tom

Answer 1

You can avoid complex and hard to read quoting if you use AWK's variable passing. You can also make use of the Output Field Separator. Also, you have extra curly braces that you don't need.

awk -v "var=$var" 'BEGIN{OFS="/"}
  {split($2,a,"-"); a[1]=toupper(a[1])
  if ($1=="aa") {print var, $1, a[1], $2 " " var, "bb", a[1]} 
    else {print var, $1, a[1], $2 " " var, "aa", a[1]}}'

Answer 2

you can use awk's toupper(a[1])