How to insert '|' between two words?

Question

I have to find average of marks in the following way:

The input file format is

Student name#class#marks1#marks2

The output file format is

Student name|class|marks 1|marks 2|average marks

I am using Ubuntu and I am very new in shell scripting. I know the normal way of coding the above in python but not in this above specific format. Please help.

Also, please tell if there is any way of writing the above program without using echo command.

Answer 1

您的规范是咳嗽相当缺乏，但...

awk 'BEGIN{RS="#";ORS="|"}{print $1,$2,$3,$4,($3+$4)/2 }' file

Answer 2

sed 's/#/|/g'

will substitute every # for a | .

Example:

cat <<EOF >file.txt
Student name#class#marks1#marks2
EOF

sed -i 's/#/|/g' file.txt

cat file.txt