Shell Programming and Scripting

for position in 1 2 3 4 5
do
     tail -1 "filename"|awk '{printf ${position}}'
done

for position in 1 2 3 4 5
do
            tail -1 "filename"|awk -v x=$position '{printf $x }'
done

tail -1 "filename" | read a b c d e f

for position in 1 2 3 4 5
do
    awk -v x=$position 'END {printf $x }' filename
done

123 456 10 11 90 39 20

123
456
10 
11
90
39
20

echo "123 456 10 11 90 39 20" | awk '{split($0,blah," ");{for(i=1;i<=NF;i++)print blah[i]}}'
123
456
10
11
90
39
20

# cat file
123 456 10 11 90 39 20
# tr \  \\n <file
123
456
10
11
90
39
20