Shell Programming and Scripting

T 50 2 2.5      is this a candy  number  color  price

head -linenumber candyfile.doc | tail -1

candyfile1.doc : data1 : data2 : data3
candyfile1.doc : data1 : data2 : data3

while read A B C D E F G H
do
          echo "First field is $A"
          echo "Second field is $B"
          ...
done < inputfile > outputfile

shadok@pomputer:~$ a=head -3 candyfile.doc | tail -1
shadok@pomputer:~$ echo $a
T 50 2 3.5   is this a candy color price
pomputer:~$ while read $a; do echo "First field is $A"; done

First field is 
^C
shadok@pomputer:~$ while read a; do echo "First field is $A"; done

First field is

awk '{print FILENAME , $(NF-2),$NF}' OFS=":" infile

 a= 12 2 51 6.2 tata titi toto tutu

a="12 2 51 6.2 tata titi toto tutu"
echo $a |awk '{print $2}' 
echo $a |awk '{print $4}'