Shell Programming and Scripting

for i in `seq 1 $numLines`; do
        line=$(sed -n '{$i}p' outputFile)
        echo $line
done

N=0
cat outputFile | while read LINE ; do
    N=$((N+1))
    echo "$LINE"
done

$ cat file
a
b
c
d
e

$ while read line
> do
>  echo first line is $line
>  read line1
>  echo second line is $line1
> done < file
first line is a
second line is b
first line is c
second line is d
first line is e
second line is

while read line; do echo  $line; done < outputFile

while read line second_line;
do
   echo  "${line} - ${second_line}" 
done < file

while read line; read second_line;
do
  echo "${line} - ${second_line}"
done <file1