Shell Programming and Scripting

Hi friends,
It's urgent. I am facing a problem. I want to read two files at a time, i mean line by line.

My requirement is like , pls here find below

while read line1fromfile1;do
echo $line1fromfile1|
.. echo $line1fromfile2---How i will do this

done< file 1

can anyone help me out. Pls don't use perl.

Thanks
Pritish

Use for loop,

for i in `cat file1`
do
<< commands>>
for j in `cat file2`
do
<< commands>>
done
done

This might be useful...

Code:

C1=1
C2=1
exec 3< my_second_file
while read LINE1; do
  read LINE2 <&3
  echo "Line $C1 from file 1: $LINE1"
  echo "  Line $C2 from file 2: $LINE2"
  let C1=$C1+1
  let C2=$C2+1
done < my_first_file

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It's working..

I also tried for a logic, but it's very complex.

cnt=1;
while read line1_f_1;do
line1_f_2=$(head -$cnt|tail +$cnt file2)
echo $line1_f_$line1_f_2 >> tmp_file
cnt=$(expr $cnt + 1)

done < file1

Not clear what you output should look like. The paste command is a candidate.

Code:

man paste

For example.

paste -d'|' file1.txt file2.txt

file 1 line 1|file 2 line 1
file 1 line 2|file 2 line 2
file 1 line 3|file 2 line 3